Thread Milling

T-A & GEN2 T-A
®
Thread Milling
TM
threadmill ranges are designed to deliver
outstanding performance, long tool life and
high precision, whether using our solid
GEN3SYS
The MaxThread and the AccuThread 856®
Page 186
MaxThread Thread Mills (BSPP/BSPT/BSW)
Page 187
MaxThread Thread Mills (NPT/NPTF)
Page 188
MaxThread Thread Mills (UN)
Page 189
MaxThread Thread Mills (Metric)
Page 190
MaxThread Thread Mills - Technical Section
Page 191
AccuThread Thread Mills (BSPP/BSPT/BSW)
Page 192
AccuThread Thread Mills (NPT/NPTF/AccuPort)
Page 193
AccuThread Thread Mills (UN)
Page 194
AccuThread Thread Mills (Metric & made to order) Page 195
Features and Benefits
• Complete programme available of
both solid carbide and indexable
thread mills
• All tools can produce left or right
hand threads
• Full profiles present on all inserts and
solid carbide thread mills
• High technology manufacturing
ensures consistent thread forms
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AccuThread Bolt in Style Inserts (UN)
Page 196
AccuThread Bolt in Style Inserts (UNJ)
Page 197
AccuThread Bolt in Style Inserts (Metric/BSPP)
Page 198
AccuThread Bolt in Style Holder (UN/ISO/BSPP)
Page 198
AccuThread Bolt in Style Inserts (BSPT/NPT/NPTF)
Page 199
AccuThread Bolt in Style Holder (NPT/NPTF/BSPT)
Page 199
AccuThread Pin Style Inserts
(NPT/NPTF/BSPP/BSPT/API)
Page 200
AccuThread Pin Style Inserts (UN)
Page 201
AccuThread Pin Style Inserts (UNJ)
Page 202
AccuThread Pin Style Inserts (Metric/ACME)
Page 203
AccuThread Pin Style Holders
Page 204
AccuThread Technical Section
Page 205
Guaranteed Application Request Form
Page 221
enquiries@alliedmaxcut.com
www.alliedmaxcut.com
ASC 320 Solid Carbide
How to order information
AccuPort 432
Page 184
Thread Milling
Thread Milling Range
Special Tooling
CONTENTS
Revolution & Core Drill
carbide or indexable insert threadmills.
183
Thread Milling
T-A & GEN2 T-A
®
High Performance Threading Solutions
AMEC’s thread milling programme has developed into a comprehensive range of high precision tooling offering outstanding
productivity with exceptional levels of tool life and thread accuracy. The thread mill range covers both solid carbide and indexable
replaceable insert tools with an extensive range of threads forms.
Our thread milling programme has been specifically designed to provide customers with a wide choice. This is achieved by offering
two thread mill ranges within our product line up – the low cost, general purpose MaxThread thread mill range and the high
performance, high productivity AccuThread 856® range.
TM
GEN3SYS
Both product ranges are designed for manufacturing and production environments and offer excellent performance and thread
accuracy, allowing AMEC® to offer the best product for the job, to help give our customers the cutting edge.
Also available is AMEC’s ‘Special Products’, solutions that provide engineers, designers and production managers with the
opportunity of creating application specific tooling that can achieve levels of efficiency and performance beyond standard
threading solutions.
Revolution & Core Drill
Solid Carbide
Features and Benefits
• Helical flute which offers increased
strength and rigidity when cutting
forces are applied
MaxThread Thread Mills
The MaxThread threadmill range is manufactured from solid carbide
with ground helical flutes and a TiAlN coating as standard. These product
have been designed for the low volume / low cost production
environment, providing excellent performance at a competitive price.
TM
A helical flute design has been maintained across the MaxThread range
to allow for maximum production benefits and to negate the need for
straight flute thread mills. A comprehensive range of thread forms and
technical information further supports the programme.
TM
• TiAlN coated for increased tool life
over uncoated tools
• Extensive range of thread forms
• High quality for consistent predictable
production
AccuPort 432
ASC 320 Solid Carbide
TM
Special Tooling
Thread Milling
Features and Benefits
184
• AMEC’s proprietary AM210® coating
has a 25-50% increase in tool life
over competitor product
AccuThread 856®
The AccuThread 856® is AMEC’s premium thread milling product
range, manufactured from micro grain carbide and coated in AMEC’s
AM210® premium coating. This product is designed for the
demanding environment of high production thread milling, providing
extraordinary tool life and exceptionally high quality thread forms.
The AccuThread range is available in a wide selection of thread
standards and forms part of our specials programme allowing you to
tailor design threadmills to your specific requirements.
+44 (0)1384 400 900
+44 (0)1384 400 105
• Standard cutting lengths allow for
multiple applications without the
need for special thread mills
• Helical flute which offers increased
strength and rigidity when cutting
forces are applied
• CNC G code programmes available
enquiries@alliedmaxcut.com
www.alliedmaxcut.com
Thread Milling
Indexable Thread Milling
Features and Benefits
T-A & GEN2 T-A
®
• Extensive range of thread forms with
two thread lengths
AccuThread 856® - Bolt in style
• Can produce left or right handed
threads
Features and Benefits
• Patented pin style locking system
ensures unsurpassed repeatability
• Thread mill holders are manufactured
from stainless steel that is engineered
to dampen vibration during operation
AccuPort 432
• Extensive range of thread forms with
two thread lengths
AccuThread 856® - Indexable inserts
Features and Benefits
Bolt-in Style
Pin Style
+44 (0)1384 400 900
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• Full profiles present on all inserts
allows 100% thread form against
65-75% for tapping
Thread Milling
The AccuThread 856® indexable pin style is designed to allow for
a deeper working thread and higher rigidity, enabling high
productivity, extended tool life and excellent performance when
producing threads. The tool holders are manufactured from
dampened stainless steel, which provides outstanding rigidity when
in contact with the work piece, helping ensure high quality thread
forms are produced. Pin style tool holders incorporate through
coolant as standard.
• AMEC’s proprietary AM210® coating
has a 25-50% increase in tool life
over competitor product
• AMEC’s premium carbide allows for
extended tool life whilst providing
high quality thread forms
enquiries@alliedmaxcut.com
www.alliedmaxcut.com
Special Tooling
AccuThread 856® - Pin style
ASC 320 Solid Carbide
Revolution & Core Drill
The AccuThread 856® indexable bolt in style is our general
purpose system available in two insert lengths with an extensive
range of thread forms. The tool holders are manufactured from
engineered dampened stainless steel providing excellent rigidity
when in contact with the work pieces, helping to provide quality
thread forms.
GEN3SYS
• Thread mill holders are manufactured
from stainless steel that is engineered
to dampen vibration during operation
185
How to order information
MaxThread Solid Carbide Threadmills
TM
MAX
A
0250
MaxThread
Coating
Min. Thread Dia.
Thread Forms
Thread Pitch
A – TiAlN
English – 0250 = 1⁄ 4”
Number Drill – 0008 - #8
Metric – 0450 = M 4.5
BSW
BSPP
BSPT
NPT
NPTF
UN – 20
Metric – 1.0
TM
U
K
0250
AccuThread
Thread Class
Coating
Min. Thread Dia.
Thread Pitch
Shank Designation
U – UN, UNF
N – NPT, NPTF
M – Metric
A – AccuPort® Specific
B – BSP, BSPT
K – AM210®
H – AM200®
T – TiN
A – TiAlN
N – TiCN
U – Uncoated
English – 0250 = 1⁄ 4”
Number Drill – 0008 - #8
Metric – 0450 = M 4.5
UN – 20
Metric – 1.0
Blank - Imperial
M - Metric
-
0400
Holder Style
THT – Tapered Head
THN – Straight Head (Neutral)
THP – Straight Head (Positive)
TSN – Shell Mill
20
M
-
1F
075
M
Cutter Dia.
# of Flutes
Length of Insert
Shank Designation
400 - .400”(10.2mm)
1F – 1 Flute
2F – 2 Flutes
3F – 3 Flutes
5F – 5 Flutes
7F – 7 Flutes
8F – 8 Flutes
075 – ¾”
100 – 1.00”
150 – 1.50”
Blank - Imperial
M - Metric
AccuThread 856® Indexable Threadmill Inserts
TP
075
K
-
UN
32
I
Insert Style
Insert Length
Coating
Thread Class
Thread Pitch
Thread Style
TP – Positive – Bolt In
TN – Neutral – Pin & Screw
075 – ¾”
100 – 1.00”
150 – 1.50”
K – AM210®
H – AM200®
T – TiN
A – TiAlN
N – TiCN
U – Uncoated
UN, UNJ
NPT, NPTF
BSP, BSPT
M - Metric
F – Full ACME
AP – API Round
UN – 20
Metric – 1.0
I - Internal
E - External
Special Tooling
Thread Milling
–
AccuThread 856® Indexable Threadmill Holders
THT and THN Holders utilise bolt-in style inserts
THP and TSN Holders utilise pin style inserts
186
20
AccuThread 856® Solid Carbide Threadmills
THT
AccuPort 432
BSW
Metric and UN are shown with
thread diameter and pitch only
ASC 320 Solid Carbide
Revolution & Core Drill
GEN3SYS
T-A & GEN2 T-A
®
+44 (0)1384 400 900
+44 (0)1384 400 105
enquiries@alliedmaxcut.com
www.alliedmaxcut.com
MaxThread Threadmills
TM
Solid Carbide Threadmills BSPP/BSPT & BSW
TiAlN coated
T-A & GEN2 T-A
®
D
Internal
RO 137P
C
B
55°
RO 137P
External
A
⁄ 16” and 1⁄ 8” BSPP
⁄ 4” and 3⁄ 8” BSPP
3
⁄ 8” BSPP
1
⁄ 2” and 3⁄ 4” BSPP
1
⁄ 2”-5⁄ 8”-3⁄ 4”-7⁄ 8”
1”
1” to 2” BSPP
28
19
19
14
14
11
11
1
Max Cutter
Dia (A)
Shank Dia
(B)
Length of
Cut (C)
OAL (D)
mm
mm
mm
mm
5.97
9.91
11.94
11.94
15.75
15.75
15.75
6.00
10.00
12.00
12.00
16.00
16.00
16.00
14.53
18.72
29.00
29.03
34.47
34.67
34.67
51.00
73.00
84.00
84.00
93.00
93.00
93.00
Stk.
3
4
4
4
5
5
4
Stk.
D
Internal
RO 137P
27.5° 27.5°
R
External
1° 47’
A
Solid Carbide Threadmills BSPT
BSPT Size
Item Number
MAXA0063BSPT28
MAXA0250BSPT19
MAXA0500BSPT14
MAXA1000BSPT11
Pitch
1
⁄ 16” and 1⁄ 8” BSPT
⁄ 4” and 3⁄ 8” BSPT
1
⁄ 2” and 3⁄ 4” BSPT
1” to 2” BSPT
Flutes
28
19
14
11
1
Max Cutter
Dia (A)
Shank Dia
(B)
Length of
Cut (C)
OAL (D)
mm
mm
mm
mm
5.97
9.91
11.94
15.75
6.00
10.00
12.00
16.00
9.98
14.73
20.00
32.31
51.00
73.00
84.00
93.00
3
4
4
4
D
Internal
C
B
55°
RO 137P
External
A
Solid Carbide Threadmills BSW
Item Number
MAXA0250BSW20
MAXA0312BSW18
MAXA0375BSW16
MAXA0437BSW14
MAXA0500BSW12
MAXA0625BSW11
MAXA0750BSW10
MAXA0875BSW9
MAXA1000BSW8
Min. Thread Size
1
⁄ 4”
⁄ 16”
3
⁄ 8”
7
⁄ 16”
1
⁄ 2” – 9⁄ 16”
5
⁄ 8”
¾”
7
⁄ 8”
1”
5
+44 (0)1384 400 900
Pitch
20
18
16
14
12
11
10
9
8
Flutes
3
3
5
5
5
5
5
5
6
+44 (0)1384 400 105
Cutter Dia
(A)
Shank Dia
(B)
Length of Cut
(C)
OAL (D)
mm
mm
mm
mm
4.50
5.00
7.00
7.90
9.00
11.90
11.90
15.90
15.90
6.00
6.00
8.00
8.00
10.00
12.00
12.00
16.00
16.00
10.16
11.29
14.29
18.15
19.10
23.10
27.94
28.23
34.93
58
58
64
64
73
84
84
93
93
enquiries@alliedmaxcut.com
Stk.
Thread Milling
RO 137P
Special Tooling
90°
C
B
Revolution & Core Drill
1
Flutes
ASC 320 Solid Carbide
MAXA0063BSPP28
MAXA0250BSPP19
MAXAF0375BSPP19
MAXA0500BSPP14
MAXAF0500BSPP14
MAAF1000BSPP11
MAXA1000BSPP11
Pitch
AccuPort 432
BSP Size
Item Number
GEN3SYS
Solid Carbide Threadmills BSPP
www.alliedmaxcut.com
187
MaxThread Threadmills
TM
T-A & GEN2 T-A
®
Solid Carbide Threadmills NPT/NPTF
TiAlN coated
D
30°
Internal
30°
C
B
90°
1° 47’
A
Solid Carbide Threadmills NPT
NPT Size
Item Number
MAXA0063NPT27
MAXA0250NPT18
MAXA0500NPT14
MAXA1000NPT115
MAXA2500NPT8
1
⁄ 16” and 1⁄ 8” NPT
⁄ 4” and 3⁄ 8” NPT
1
⁄ 2” and 3⁄ 4”NPT
1” to 2” NPT
2-1⁄ 2” to 6” NPT
1
Pitch
Flutes
Max Cutter
Dia (A)
Shank Dia
(B)
Length of
Cut (C)
OAL (D)
mm
mm
mm
mm
27
18
14
11.5
8
3
4
4
4
5
5.95
7.75
11.95
15.75
19.75
6.00
8.00
12.00
16.00
20.00
11.30
15.70
23.70
28.75
38.10
58.00
64.00
84.00
93.00
115.00
Pitch
Flutes
Max Cutter
Dia (A)
Shank Dia
(B)
Length of
Cut (C)
OAL (D)
mm
mm
mm
mm
5.95
7.75
11.95
15.75
19.75
6.00
8.00
12.00
16.00
20.00
11.30
15.70
23.70
28.75
38.10
58.00
64.00
84.00
93.00
115.00
Stk.
Solid Carbide Threadmills NPTF
NPTF Size
Item Number
MAXA0063NPTF27
MAXA0250NPTF18
MAXA0500NPTF14
MAXA1000NPTF115
MAXA2500NPTF8
1
⁄ 16” and 1⁄ 8” NPTF
⁄ 4” and 3⁄ 8” NPTF
1
⁄ 2” and 3⁄ 4” NPTF
1” to 2” NPTF
2-1⁄ 2” to 6” NPTF
1
27
18
14
11.5
8
3
4
4
4
5
Stk.
Note: Solid Carbide Threadmills are sold in 1 piece packages
Stk. - Stock Availability
Stocked.
Stocked in limited quantities
Non-Stocked Standard – 25 working days delivery
All other coatings are non-stocked standards – 25 working day delivery applies
Special Tooling
Thread Milling
AccuPort 432
ASC 320 Solid Carbide
Revolution & Core Drill
GEN3SYS
External
188
+44 (0)1384 400 900
+44 (0)1384 400 105
enquiries@alliedmaxcut.com
www.alliedmaxcut.com
MaxThread Threadmills
TM
Solid Carbide Threadmills UN
TiAlN coated
60°
T-A & GEN2 T-A
D
Internal
1/4P
®
C
B
A
1/8P
External
64
56
48
40
44
32
36
32
32
28
24
28
20
24
18
24
16
28
20
14
13
18
12
11
16
12
10
14
14
9
8
12
7
6
3*
3*
3*
3*
3
3
3
3
3
3
3
3
3
3
3
4
4
4
4
4
4
4
4
4
4
4
4
4
5
4
4
5
5
5
Cutter Dia
(A)
Shank Dia
(B)
Length of Cut
(C)
OAL (D)
mm
mm
mm
mm
1.65
1.65
1.80
2.20
2.40
2.50
3.00
3.20
3.80
3.80
3.70
4.75
4.75
5.95
5.95
7.25
7.25
7.90
8.75
7.75
9.40
9.90
9.90
11.95
11.95
11.95
11.95
11.95
15.75
15.75
15.75
15.75
19.90
19.90
3.00
3.00
3.00
3.00
3.00
3.00
4.00
4.00
4.00
4.00
4.00
6.00
6.00
6.00
6.00
8.00
8.00
8.00
10.00
8.00
10.00
10.00
10.00
12.00
12.00
12.00
12.00
12.00
16.00
16.00
16.00
16.00
20.00
20.00
3.20
3.20
3.75
4.45
4.65
5.55
6.35
6.35
7.95
8.20
8.50
12.70
12.70
16.00
17.00
19.00
19.00
19.95
22.85
20.00
23.50
22.65
22.65
32.40
31.75
31.75
33.00
32.70
34.47
36.75
35.00
33.87
36.30
38.10
39.00
39.00
39.00
39.00
39.00
39.00
51.00
51.00
51.00
51.00
51.00
58.00
58.00
58.00
58.00
64.00
64.00
64.00
73.00
64.00
73.00
73.00
73.00
84.00
84.00
84.00
84.00
84.00
93.00
93.00
93.00
93.00
105.00
105.00
C
B
60°
* Items marked with an asterisk are straight fluted
D
Internal
1/4P
Stk.
A
1/8P
Revolution & Core Drill
#2
#2
#3
#4
#5
#6
#8
#8
#10
#10
#10
1
⁄ 4”
1
⁄ 4”
5
⁄ 16”
5
⁄ 16”
3
⁄ 8”
3
⁄ 8”
7
⁄ 16”
7
⁄ 16”
7
⁄ 16”
1
⁄ 2”
9
⁄ 16”
9
⁄ 16”
5
⁄ 8”
3
⁄ 4”
3
⁄ 4”
3
⁄ 4”
7
⁄ 8”
7
⁄ 8”
7
⁄ 8”
1”
1”-1”1⁄ 16-1”1⁄ 8-1”1⁄ 4
11⁄ 8”
13⁄ 8”
Flutes
ASC 320 Solid Carbide
Pitch
AccuPort 432
MAXA0002x64
MAXA0002x56
MAXA0003x48
MAXA0004x40
MAXA0005x44
MAXA0006x32
MAXA0008x36
MAXA0008x32
MAXA0010x32
MAXA0010x28
MAXA0010x24
MAXA0250x28
MAXA0250x20
MAXA0313x24
MAXA0313x18
MAXA0375x24
MAXA0375x16
MAXA0438x28
MAXA0438x20
MAXA0438x14
MAXA0500x13
MAXA0563x18
MAXA0563x12
MAXA0625x11
MAXA0750x16
MAXA0750x12
MAXA0750x10
MAXA0875x14
MAXAF0875x14
MAXA0875x9
MAXA1000x8
MAXAF1000x12
MAXA1125x7
MAXA1375x6
Min. Thread Size
External
Thread Milling
Item Number
GEN3SYS
Solid Carbide Threadmills UN
Item Number
MAXA0625x11XL
MAXA0750x10XL
MAXA0875x9XL
MAXA1000x8XL
Min. Thread Size
5
⁄ 8”
⁄ 4”
7
⁄ 8”
1”
3
Pitch
11
10
9
8
Flutes
4
4
4
6
Cutter Dia
(A)
Shank Dia
(B)
Length of Cut
(C)
OAL (D)
mm
mm
mm
mm
11.95
11.95
15.75
19.90
12.00
12.00
16.00
20.00
37.00
40.70
45.20
50.80
100.00
100.00
100.00
115.00
Stk.
Special Tooling
Solid Carbide Threadmills UN Extra Length
Note: Solid Carbide Threadmills are sold in 1 piece packages
+44 (0)1384 400 900
+44 (0)1384 400 105
enquiries@alliedmaxcut.com
www.alliedmaxcut.com
189
MaxThread Threadmills
TM
Solid Carbide Threadmills Metric ISO
TiAlN coated
T-A & GEN2 T-A
®
D
Internal
1/4P
C
B
60°
A
External
Solid Carbide Threadmills Metric
Thread Size
Item Number
MAXA0200x040
MAXA0250x045
MAXA0300x050
MAXA0400x070
MAXA0450x075
MAXA0500x080
MAXA0600x100
MAXA0600x075
MAXA0600x050
MAXA0800x125
MAXA1000x150
MAXA1000x075
MAXA1000x050
MAXA1200x175
MAXA1200x100
MAXA1400x150
MAXA1400x200
MAXA1800x150
MAXA2000x250
MAXA2000x200
MAXAF2000x150
MAXA2400x300
MAXA3000x350
MAXA3600x400
Pitch
M2
M2.5
M3
M4
M4.5
M5
M6
M6
M6
M8
M10
M10
M10
M12
M12
M14
M14
M18
M20
M20
M20-M22-M24
M24
M30
M36
Flutes
0.40
0.45
0.50
0.70
0.75
0.80
1.00
0.75
0.50
1.25
1.50
0.75
0.50
1.75
1.00
1.50
2.00
1.50
2.50
2.00
1.50
3.00
3.50
4.00
3
3
3
3
3
3
3
3
3
3
4
4
4
4
4
4
4
4
4
4
5
4
4
5
Max Cutter
Dia (A)
Shank Dia
(B)
Length of Cut
(C)
OAL
(D)
mm
mm
mm
mm
1.50
1.50
2.15
2.90
3.00
3.60
4.60
4.60
4.60
5.90
7.40
7.95
7.95
9.40
9.40
10.90
10.90
11.90
11.90
11.95
15.75
15.90
15.75
19.90
3.00*
3.00*
3.00*
3.00
4.00
4.00
6.00
6.00
6.00
6.00
8.00
8.00
8.00
10.00
10.00
12.00
12.00
12.00
12.00
12.00
16.00
16.00
16.00
20.00
3.20
3.60
4.50
8.00
6.75
8.00
12.00
12.00
12.00
16.25
19.50
15.00
15.00
22.71
20.00
27.00
28.00
31.50
30.00
30.00
36.00
36.00
38.50
40.00
39.00
39.00
39.00
39.00
51.00
51.00
51.00
51.00
58.00
51.00
64.00
64.00
64.00
73.00
73.00
84.00
84.00
84.00
84.00
84.00
93.00
93.00
100.00
105.00
Stk.
* Items marked with an asterisk are straight fluted
Stk. - Stock Availability
Stocked.
Stocked in limited quantities
Non-Stocked Standard – 25 working days delivery
All other coatings are non-stocked standards – 25 working day delivery applies
Special Tooling
Thread Milling
AccuPort 432
ASC 320 Solid Carbide
Revolution & Core Drill
GEN3SYS
1/8P
190
+44 (0)1384 400 900
+44 (0)1384 400 105
enquiries@alliedmaxcut.com
www.alliedmaxcut.com
Technical Section - MaxThread Threadmills
TM
Recommended Cutting Data
Solid Carbide Threadmills
Medium Carbon Steel
Alloy Steel
High Strength Alloy
Structural Steel
Tool Steel
High Temperature Alloy
Stainless Steel
Stainless Steel PH
Cast Iron
Aluminium, Wrought
Cast Aluminium*
Brass
Easy
Easy
Easy
Average
Average
Average
Average
Average
Average
Average
Average
Average
Average
Average
Difficult
Difficult
Average
Difficult
Difficult
Average
Average
Difficult
Difficult
Difficult
Difficult
Difficult
Average
Difficult
Average
Difficult
Easy
Easy
Easy
Average
Average
Easy
Easy
Easy
Easy
167
130
93
167
130
112
93
137
120
107
95
107
93
84
75
70
89
80
70
143
119
107
107
93
31
21
101
96
58
29
152
142
130
113
108
335
305
191
295
5
6
8
10
12
16
19
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.008
0.008
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.010
0.010
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.015
0.015
0.015
0.015
0.018
0.018
0.018
0.018
0.018
0.018
0.018
0.015
0.015
0.015
0.015
0.015
0.015
0.015
0.015
0.015
0.015
0.015
0.015
0.018
0.018
0.018
0.018
0.018
0.015
0.015
0.015
0.015
0.015
0.015
0.018
0.018
0.018
0.018
0.018
0.023
0.023
0.023
0.023
0.023
0.023
0.023
0.023
0.023
0.023
0.023
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.023
0.023
0.023
0.023
0.023
0.020
0.020
0.020
0.020
0.020
0.020
0.023
0.023
0.023
0.023
0.023
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.023
0.023
0.023
0.023
0.023
0.023
0.025
0.025
0.025
0.025
0.025
0.038
0.038
0.038
0.038
0.038
0.038
0.038
0.038
0.038
0.038
0.038
0.033
0.033
0.033
0.033
0.033
0.033
0.033
0.033
0.033
0.033
0.033
0.033
0.038
0.038
0.038
0.038
0.038
0.025
0.025
0.025
0.025
0.025
0.025
0.038
0.038
0.038
0.038
0.038
0.051
0.051
0.051
0.051
0.051
0.051
0.051
0.051
0.051
0.051
0.051
0.046
0.046
0.046
0.046
0.046
0.046
0.046
0.046
0.046
0.046
0.046
0.046
0.051
0.051
0.051
0.051
0.051
0.030
0.030
0.038
0.038
0.038
0.038
0.051
0.051
0.051
0.051
0.051
0.064
0.064
0.064
0.064
0.064
0.064
0.064
0.064
0.064
0.064
0.064
0.051
0.051
0.051
0.051
0.051
0.051
0.051
0.051
0.051
0.051
0.051
0.051
0.064
0.064
0.064
0.064
0.064
0.038
0.038
0.051
0.051
0.051
0.051
0.064
0.064
0.064
0.064
0.064
0.076
0.076
0.076
0.076
GEN3SYS
Low Carbon Steel
100-150
150-200
200-250
85-125
125-175
175-225
225-275
125-175
175-225
225-275
275-325
125-175
175-225
225-275
275-325
325-375
225-300
300-350
350-400
100-150
150-250
250-350
150-200
200-250
140-220
220-310
135-185
185-275
185-275
275-325
120-150
150-200
200-220
220-260
260-320
30
180
120
30-125
3
Revolution & Core Drill
Free Machining Steel
Recommended Feed (mm/tooth)
ASC 320 Solid Carbide
Material
TiAlN
M/min
AccuPort 432
Cutter (mm)
Material
Material
Hardness
Machinability
(BHN)
T-A & GEN2 T-A
®
Step 1
Step 2
Step 3
RPM=(m/min x 1000)(Dia x 3.142)
Linear Feed Rate = RPM x mm/tooth x No of teeth
AFR for Internal Thread Milling = (Major Dia-Cutter Dia) / Major Dia) x
Linear Feed Rate
RPM=(152 x 1000)(8.89 x 3.142)
Linear Feed Rate = 5442 x 0.038 x 4
AFR for Internal Thread Milling = (12.7 – 8.89) / 12.7) x 827.18
RPM=5442
Linear Feed Rate = 827.18 mm/min
AFR for Internal Thread Milling = 248.15mm/min
Note:
Reduce feed and speed by 30% for NPT and NPTF Thread Forms due to tapered cutting action
* Uncoated thread mills are recommended for cast aluminium applications (price and availability upon request)
Refer to recommended pass chart on page 208 when referencing material machinability
+44 (0)1384 400 900
+44 (0)1384 400 105
enquiries@alliedmaxcut.com
www.alliedmaxcut.com
Special Tooling
The above formula on an internal thread program adjusts the linear feed rate to be applied to the O.D. instead of the centre of the cutting tool.
If the feed rate is not adjusted, the excessive feed rate will cause the thread mill cutting edges to fail.
Example of an Internal Thread Feed Rate Calculation: Cast Iron 125 BHN with a ½ - 13 thread form.
Thread Milling
Formulas: Linear Feed Rate = RPM x mm/tooth x No. of Teeth
M/min = (RPM x 3.142 x Dia)/1000.
RPM = (M/min x 1000) / (Dia x 3.142)
Adjusted Feed Rate (AFR) for Internal Thread Milling = (Thread Major Dia – Cutter Dia) / major Dia) x Linear Feed Rate
191
AccuThread 856
T-A & GEN2 T-A
®
®
Solid Carbide Threadmills BSPP/BSPT/BSW
AM210® coated
D
Internal
RO 137P
C
B
55°
RO 137P
External
A
AccuPort 432
ASC 320 Solid Carbide
Revolution & Core Drill
GEN3SYS
Solid Carbide Threadmills BSPP
BSP Size
Item Number
Pitch
1
⁄ 16” and 1⁄ 8” BSP
⁄ 4” and 3⁄ 8” BSP
3
⁄ 8”
1
⁄ 2” and 3⁄ 4” BSP
1
⁄ 2”-5⁄ 8”-3⁄ 4”-7⁄ 8”
1”
1” to 2” BSP
TMBK0063-BSPPM
TMBK0250-BSPPM
TMBKF0375-BSPPM
TMBK0500-BSPPM
TMBKF0500-BSPPM
TMBKF1000-BSPPM
TMBK1000-BSPPM
28
19
19
14
14
11
11
1
Max Cutter
Dia (A)
Shank Dia
(B)
Length of
Cut (C)
OAL (D)
mm
mm
mm
mm
5.97
9.91
11.94
11.94
15.75
15.75
15.75
6.00
10.00
12.00
12.00
16.00
16.00
16.00
14.53
18.72
29.00
29.03
34.47
34.67
34.67
51.00
73.00
84.00
84.00
93.00
93.00
93.00
Max Cutter
Dia (A)
Shank Dia
(B)
Length of
Cut (C)
OAL (D)
Stk.
mm
mm
mm
mm
5.97
9.91
11.94
15.75
6.00
10.00
12.00
16.00
9.98
14.73
20.00
32.31
51.00
73.00
84.00
93.00
Flutes
3
4
4
4
5
5
4
Stk.
D
Internal
RO 137P
27.5° 27.5°
90°
C
B
R
External
1° 47’
A
Solid Carbide Threadmills BSPT
BSPT Size
Item Number
1
⁄ 16” and 1⁄ 8” BSPT
⁄ 4” and 3⁄ 8” BSPT
1
⁄ 2” and 3⁄ 4” BSPT
1” to 2” BSPT
TMBK0063-BSPTM
TMBK0250-BSPTM
TMBK0500-BSPTM
TMBK1000-BSPTM
RO 137P
Pitch
Flutes
28
19
14
11
1
3
4
4
4
D
Internal
55°
C
B
Special Tooling
Thread Milling
RO 137P
192
External
A
Solid Carbide Threadmills BSW
Item Number
Min. Thread Size
TMBK0250-BSWM
TMBK0312-BSWM
TMBK0375-BSWM
TMBK0437-BSWM
TMBK0500-BSWM
TMBK0625-BSWM
TMBK0750-BSWM
TMBK0875-BSWM
TMBK1000-BSWM
+44 (0)1384 400 900
1
⁄ 4”
⁄ 16”
3
⁄ 8”
7
⁄ 16”
1
⁄ 2” – 9⁄ 16”
5
⁄ 8”
¾”
7
⁄ 8”
1”
5
Pitch
20
18
16
14
12
11
10
9
8
Flutes
3
3
5
5
5
5
5
5
6
+44 (0)1384 400 105
Cutter Dia
(A)
Shank Dia
(B)
Length of Cut
(C)
OAL (D)
mm
mm
mm
mm
4.50
5.00
7.00
7.90
9.00
11.90
11.90
15.90
15.90
6.00
6.00
8.00
8.00
10.00
12.00
12.00
16.00
16.00
10.16
11.29
14.29
18.15
19.10
23.10
27.94
28.23
34.93
58
58
64
64
73
84
84
93
93
enquiries@alliedmaxcut.com
Stk.
www.alliedmaxcut.com
®
AccuThread 856
Solid Carbide Threadmills NPT/NPTF/AccuPort 432®
AM210® coated
D
Internal
30°
C
B
90°
T-A & GEN2 T-A
30°
®
1° 47’
External
A
1
⁄ 16” and 1⁄ 8” NPT
⁄ 4” and 3⁄ 8” NPT
1
⁄ 2” and 3⁄ 4”NPT
1” to 2” NPT
2-1⁄ 2” to 6” NPT
1
Flutes
Max Cutter
Dia (A)
Shank Dia
(B)
Length of
Cut (C)
OAL (D)
mm
mm
mm
mm
27
18
14
11.5
8
3
4
4
4
4
5.95
7.75
11.95
15.75
19.75
6.00
8.00
12.00
16.00
20.00
11.30
15.70
23.70
28.75
38.10
58.00
64.00
84.00
93.00
115.00
Pitch
Flutes
Max Cutter
Dia (A)
Shank Dia
(B)
Length of
Cut (C)
OAL (D)
mm
mm
mm
mm
5.95
7.75
11.95
15.75
19.75
6.00
8.00
12.00
16.00
20.00
11.30
15.70
23.70
28.75
38.10
58.00
64.00
84.00
93.00
115.00
Stk.
Solid Carbide Threadmills NPTF
NPTF Size
Item Number
TMNK0063-NPTFM
TMNK0250-NPTFM
TMNK0500-NPTFM
TMNK1000-NPTFM
TMNK2500-NPTFM
1
⁄ 16” and 1⁄ 8” NPTF
⁄ 4” and 3⁄ 8” NPTF
1
⁄ 2” and 3⁄ 4” NPTF
1” to 2” NPTF
2-1⁄ 2” to 6” NPTF
27
18
14
11.5
8
1
3
4
4
4
4
Stk.
Note: Solid Carbide Threadmills are sold in 1 piece packages
60°
AccuPort 432
D
Internal
1/4P
C
B
A
1/8P
Revolution & Core Drill
TMNK0063-NPTM
TMNK0250-NPTM
TMNK0500-NPTM
TMNK1000-NPTM
TMNK2500-NPTM
Pitch
ASC 320 Solid Carbide
NPT Size
Item Number
GEN3SYS
Solid Carbide Threadmills NPT
External
TMAK0438-20M
TMAK0563-18M
TMAK0750-16M
TMAK0875-14M
TMAK1063-12M
Port Size
-4 to -5
-6
-8
-10
-12 to -32
Pitch
20
18
16
14
12
Flutes
4
4
4
4
4
Max Cutter Dia
(A)
Shank Dia
(B)
Length of Cut
(C)
OAL (D)
mm
mm
mm
mm
8.51
9.40
11.94
11.94
11.94
10.00
10.00
12.00
12.00
12.00
15.24
16.92
19.05
21.77
23.29
73.00
73.00
84.00
84.00
84.00
Stk.
Special Tooling
Item Number
Stk. - Stock Availability
Stocked.
Stocked in limited quantities
Non-Stocked Standard – 25 working days delivery
All other coatings are non-stocked standards – 25 working day delivery applies
+44 (0)1384 400 900
+44 (0)1384 400 105
Thread Milling
Solid Carbide Threadmills AccuPort 432® Specific UN
enquiries@alliedmaxcut.com
www.alliedmaxcut.com
193
AccuThread 856
T-A & GEN2 T-A
®
®
Solid Carbide Threadmills UN
AM210® coated
D
Internal
1/4P
C
B
60°
A
1/8P
External
Solid Carbide Threadmills UN
Min. Thread Size
AccuPort 432
ASC 320 Solid Carbide
Revolution & Core Drill
GEN3SYS
Item Number
TMUK0002-64M
TMUK0002-56M
TMUK0003-48M
TMUK0004-40M
TMUK0005-44M
TMUK0006-32M
TMUK0008-36M
TMUK0008-32M
TMUK0010-32M
TMUK0010-28M
TMUK0010-24M
TMUK0250-28M
TMUK0250-20M
TMUK0313-24M
TMUK0313-18M
TMUK0375-24M
TMUK0375-16M
TMUK0438-28M
TMUK0438-20M
TMUK0438-14M
TMUK0500-13M
TMUK0563-18M
TMUK0563-12M
TMUK0625-11M
TMUK0750-16M
TMUK0750-12M
TMUK0750-10M
TMUK0875-14M
TMUKF0875-14M
TMUK0875-9M
TMUK1000-8M
TMUKF1000-12M
TMUK1125-7M
TMUK1375-6M
Pitch
#2
#2
#3
#4
#5
#6
#8
#8
#10
#10
#10
1
⁄ 4”
1
⁄ 4”
5
⁄ 16”
5
⁄ 16”
3
⁄ 8”
3
⁄ 8”
7
⁄ 16”
7
⁄ 16”
7
⁄ 16”
1
⁄ 2”
9
⁄ 16”
9
⁄ 16”
5
⁄ 8”
3
⁄ 4”
3
⁄ 4”
3
⁄ 4”
7
⁄ 8”
7
⁄ 8”
7
⁄ 8”
1”
1”-1”1⁄ 16-1”1⁄ 8-1”1⁄ 4
11⁄ 8”
13⁄ 8”
64
56
48
40
44
32
36
32
32
28
24
28
20
24
18
24
16
28
20
14
13
18
12
11
16
12
10
14
14
9
8
12
7
6
Flutes
3*
3*
3*
3*
3
3
3
3
3
3
3
3
3
3
3
4
4
4
4
4
4
4
4
4
4
4
4
4
5
4
4
5
5
5
Cutter Dia
(A)
Shank Dia
(B)
Length of Cut
(C)
OAL (D)
mm
mm
mm
mm
1.65
1.65
1.80
2.20
2.40
2.50
3.00
3.20
3.80
3.80
3.70
4.75
4.75
5.95
5.95
7.25
7.25
7.90
8.75
7.75
9.40
9.90
9.90
11.95
11.95
11.95
11.95
11.95
15.75
15.75
15.75
15.75
19.90
19.90
3.00
3.00
3.00
3.00
3.00
3.00
4.00
4.00
4.00
4.00
4.00
6.00
6.00
6.00
6.00
8.00
8.00
8.00
10.00
8.00
10.00
10.00
10.00
12.00
12.00
12.00
12.00
12.00
16.00
16.00
16.00
16.00
20.00
20.00
3.20
3.20
3.75
4.45
4.65
5.55
6.35
6.35
7.95
8.20
8.50
12.70
12.70
16.00
17.00
19.00
19.00
19.95
22.85
20.00
23.50
22.65
22.65
32.40
31.75
31.75
33.00
32.70
34.47
36.75
35.00
33.87
36.30
38.10
39.00
39.00
39.00
39.00
39.00
39.00
51.00
51.00
51.00
51.00
51.00
58.00
58.00
58.00
58.00
64.00
64.00
64.00
73.00
64.00
73.00
73.00
73.00
84.00
84.00
84.00
84.00
84.00
93.00
93.00
93.00
93.00
105.00
105.00
Stk.
* Items marked with an asterisk are straight fluted
Thread Milling
D
Internal
1/4P
C
B
60°
A
1/8P
External
Special Tooling
Solid Carbide Threadmills UN Extra Length
Item Number
Min. Thread Size
TMUK0625-11XLM
TMUK0750-10XLM
TMUK0875-9XLM
TMUK1000-8XLM
5
⁄ 8”
⁄ 4”
7
⁄ 8”
1”
3
Pitch
11
10
9
8
Flutes
4
4
4
6
Cutter Dia
(A)
Shank Dia
(B)
Length of Cut
(C)
OAL (D)
mm
mm
mm
mm
11.95
11.95
15.75
19.90
12.00
12.00
16.00
20.00
37.00
40.70
45.20
50.80
100.00
100.00
100.00
115.00
Stk.
Note: Solid Carbide Threadmills are sold in 1 piece packages
194
+44 (0)1384 400 900
+44 (0)1384 400 105
enquiries@alliedmaxcut.com
www.alliedmaxcut.com
®
AccuThread 856
®
Solid Carbide Threadmills Metric ISO
AM210® coated
1/4P
C
B
60°
T-A & GEN2 T-A
D
Internal
A
1/8P
External
Solid Carbide Threadmills Metric
Flutes
0.40
0.45
0.50
0.70
0.75
0.80
1.00
0.75
0.50
1.25
1.50
0.75
0.50
1.75
1.00
1.50
2.00
1.50
2.50
2.00
1.50
3.00
3.50
4.00
Max Cutter
Dia (A)
Shank Dia
(B)
Length of Cut
(C)
OAL (D)
mm
mm
mm
mm
1.50
1.50
2.15
2.90
3.00
3.60
4.60
4.60
4.60
5.90
7.40
7.95
7.95
9.40
9.40
10.90
10.90
11.90
11.90
11.95
15.75
15.90
15.75
19.90
3.00*
3.00*
3.00*
3.00
4.00
4.00
6.00
6.00
6.00
6.00
8.00
8.00
8.00
10.00
10.00
12.00
12.00
12.00
12.00
12.00
16.00
16.00
16.00
20.00
3.20
3.60
4.50
8.00
6.75
8.00
12.00
12.00
12.00
16.25
19.50
15.00
15.00
22.71
20.00
27.00
28.00
31.50
30.00
30.00
36.00
36.00
38.50
40.00
39.00
39.00
39.00
39.00
51.00
51.00
51.00
51.00
58.00
51.00
64.00
64.00
64.00
73.00
73.00
84.00
84.00
84.00
84.00
84.00
93.00
93.00
100.00
105.00
3
3
3
3
3
3
3
3
3
3
4
4
4
4
4
4
4
4
4
4
5
4
4
5
Stk.
GEN3SYS
M2
M2.5
M3
M4
M4.5
M5
M6
M6
M6
M8
M10
M10
M10
M12
M12
M14
M14
M18
M20
M20
M20-M22-M24
M24
M30
M36
Pitch
Revolution & Core Drill
TMMK0200-040M
TMMK0250-045M
TMMK0300-050M
TMMK0400-070M
TMMK0450-075M
TMMK0500-080M
TMMK0600-100M
TMMK0600-075M
TMMK0600-050M
TMMK0800-125M
TMMK1000-150M
TMMK1000-075M
TMMK1000-050M
TMMK1200-175M
TMMK1200-100M
TMMK1400-150M
TMMK1400-200M
TMMK1800-150M
TMMK2000-250M
TMMK2000-200M
TMMKF2000-150M
TMMK2400-300M
TMMK3000-350M
TMMK3600-400M
Min. Thread Size
AccuPort 432
Stk. - Stock Availability
Stocked.
Stocked in limited quantities
Non-Stocked Standard – 25 working days delivery
All other coatings are non-stocked standards – 25 working day delivery applies
ASC 320 Solid Carbide
Item Number
Made to order tool specification – Priced on Request
Fax a copy of the table below to the AMEC’s Application Engineering Department +44 1384 408372
or email engineering@alliedmaxcut.com to receive pricing for a special thread mill
Thread Milling
D
C
A
Thread
Size
Thread
Form
Pitch
# Flutes
Cutter
Diameter
(A)
Shank
Diameter
(B)
Length
of Cut
(C)
OAL
(D)
Flute Style
Coating
Company Name
Contact Name
Telephone
Fax
Distributor Name
Distributor Contact Name
Telephone
Fax
Qty
Special Tooling
B
Note: Solid Carbide Threadmills are sold in 1 piece packages
+44 (0)1384 400 900
+44 (0)1384 400 105
enquiries@alliedmaxcut.com
www.alliedmaxcut.com
195
AccuThread 856
Indexable Threadmills Bolt-In Inserts Style UN
AM210® coated
T-A & GEN2 T-A
®
®
60°
A
Bolt-In Style Inserts UN Internal
AccuPort 432
ASC 320 Solid Carbide
Revolution & Core Drill
GEN3SYS
Item Number
TP075K-UN32I
TP075K-UN24I
TP075K-UN20I
TP075K-UN18I
TP075K-UN16I
TP100K-UN32I
TP100K-UN24I
TP100K-UN20I
TP100K-UN18I
TP100K-UN16I
TP100K-UN14I
TP100K-UN12I
TP100K-UN10I
Threads per Inch
32
24
20
18
16
32
24
20
18
16
14
12
10
1/8P
Insert Length (A)
Insert Thickness (B)
mm
mm
19.05
19.05
19.05
19.05
19.05
25.40
25.40
25.40
25.40
25.40
25.40
25.40
25.40
2.03
2.03
2.03
2.03
2.03
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
External
Stk.
Note: Indexable Threadmill Inserts are sold in 2 piece packages
Internal
1/4P
B
60°
A
Bolt-In Style Inserts UN External
Item Number
TP075K-UN32E
TP075K-UN24E
TP075K-UN20E
TP075K-UN18E
TP075K-UN16E
TP100K-UN32E
TP100K-UN24E
TP100K-UN20E
TP100K-UN18E
TP100K-UN16E
TP100K-UN14E
TP100K-UN12E
Threads per Inch
32
24
20
18
16
32
24
20
18
16
14
12
1/8P
Insert Length (A)
Insert Thickness (B)
mm
mm
19.05
19.05
19.05
19.05
19.05
25.40
25.40
25.40
25.40
25.40
25.40
25.40
2.03
2.03
2.03
2.03
2.03
3.56
3.56
3.56
3.56
3.56
3.56
3.56
External
Stk.
196
Note: Indexable Threadmill Inserts are sold in 2 piece packages
Stk. - Stock Availability
Stocked.
Stocked in limited quantities
Non-Stocked Standard – 25 working days delivery
All other coatings are non-stocked standards – 25 working day delivery applies
Special Tooling
Thread Milling
Internal
1/4P
B
+44 (0)1384 400 900
+44 (0)1384 400 105
enquiries@alliedmaxcut.com
www.alliedmaxcut.com
®
AccuThread 856
5/16P
60°
R max 0.18042P
R min 0.15011P
mm
19.05
19.05
19.05
19.05
19.05
25.40
25.40
25.40
25.40
25.40
25.40
19.05
2.03
2.03
2.03
2.03
2.03
3.56
3.56
3.56
3.56
3.56
3.56
2.03
Stk.
Note: Indexable Threadmill Inserts are sold in 2 piece packages
5/16P
B
Item Number
Threads per Inch
TP075K-UNJ32E
TP075K-UNJ24E
TP075K-UNJ20E
TP075K-UNJ18E
TP075K-UNJ16E
TP100K-UNJ32E
TP100K-UNJ24E
TP100K-UNJ20E
TP100K-UNJ18E
TP100K-UNJ16E
TP100K-UNJ12E
32
24
20
18
16
32
24
20
18
16
12
Internal
60°
A
R max 0.18042P
R min 0.15011P
Bolt-In Style Inserts UNJ External
Insert Length (A)
Insert Thickness (B)
mm
mm
19.05
19.05
19.05
19.05
19.05
25.40
25.40
25.40
25.40
25.40
25.40
2.03
2.03
2.03
2.03
2.03
3.56
3.56
3.56
3.56
3.56
3.56
GEN3SYS
32
24
20
18
16
32
24
20
18
16
14
12
Insert Thickness (B)
mm
External
Stk.
Revolution & Core Drill
TP075K-UNJ32I
TP075K-UNJ24I
TP075K-UNJ20I
TP075K-UNJ18I
TP075K-UNJ16I
TP100K-UNJ32I
TP100K-UNJ24I
TP100K-UNJ20I
TP100K-UNJ18I
TP100K-UNJ16I
TP100K-UNJ14I
TP100K-UNJ12I
Insert Length (A)
ASC 320 Solid Carbide
Threads per Inch
External
AccuPort 432
Bolt-In Style Inserts UNJ Internal
Item Number
Internal
A
Note: Indexable Threadmill Inserts are sold in 2 piece packages
Special Tooling
Stk. - Stock Availability
Stocked.
Stocked in limited quantities
Non-Stocked Standard – 25 working days delivery
All other coatings are non-stocked standards – 25 working day delivery applies
Thread Milling
B
T-A & GEN2 T-A
®
Indexable Threadmills Bolt-In Inserts Style UNJ
AM210® coated
+44 (0)1384 400 900
+44 (0)1384 400 105
enquiries@alliedmaxcut.com
www.alliedmaxcut.com
197
®
®
AccuThread
856
Indexable Threadmills Metric/BSP and Holders
T-A & GEN2 T-A
AM210® coated
60°
A
Bolt-In Style Inserts Metric Internal
1/8P
Pitch
Item Number
GEN3SYS
Internal
1/4P
B
TP075K-M0.5I
TP075K-M1.0I
TP075K-M1.25I
TP075K-M1.5I
TP100K-M1.0I
TP100K-M1.5I
TP100K-M2.0I
Insert Length (A)
Insert Thickness (B)
mm
mm
0.5
1.0
1.25
1.5
1.0
1.5
2.0
19.05
19.05
19.05
19.05
25.40
25.40
25.40
External
Stk.
2.03
2.03
2.03
2.03
3.56
3.56
3.56
ASC 320 Solid Carbide
Revolution & Core Drill
Note: Indexable Threadmill Inserts are sold in 2 piece packages
Bolt-In Style Inserts Metric External
Pitch
Item Number
TP100K-M1.0E
TP100K-M1.5E
TP100K-M2.0E
Insert Thickness (B)
mm
mm
1.0
1.5
2.0
25.40
25.40
25.40
Stk.
3.56
3.56
3.56
Note: Indexable Threadmill Inserts are sold in 2 piece packages
RO 137P
B
Threads per Inch
TP075K-BSPP19
TP100K-BSPP14
TP100K-BSPP19
RO 137P
External
Insert Length (A)
Insert Thickness (B)
mm
mm
19
14
19
Internal
55°
A
Bolt-In Style Inserts BSPP Internal & External
Item Number
AccuPort 432
Insert Length (A)
19.05
25.40
25.40
Stk.
2.03
3.56
3.56
Note: Indexable Threadmill Inserts are sold in 2 piece packages
Thread Milling
E
B
Special Tooling
C
D
Straight Bolt-In Style UN/ISO/BSPP Internal & External
Insert
Shank Dia
(A)
Pilot Dia
(B)
OAL
(C)
Cutter Dia
(D)
Insert
Length (E)
Flutes
Screw
Stk.
TP075K-UN/ISO/BSPP
TP100K-UN/ISO/BSPP
13.00
20.00
6.35
11.58
76.20
88.90
10.01
15.88
19.05
25.40
1
1
TMS-250
TMS-40
Item Number
198
A
THN-0394-IF075M
THN-0625-1F100M
+44 (0)1384 400 900
+44 (0)1384 400 105
enquiries@alliedmaxcut.com
www.alliedmaxcut.com
®
AccuThread 856
Internal
RO 137P
27.5° 27.5°
A
90°
TP075K-BSPT19
TP100K-BSPT14
TP100K-BSPT19
Insert Length (A)
Insert Thickness (B)
mm
mm
19.05
25.40
25.40
2.03
3.56
3.56
19
14
19
Stk.
Note: Indexable Threadmill Inserts are sold in 2 piece packages
30°
B
A
90°
Bolt-In Style Inserts NPT/NPTF Internal & External
Threads per Inch
Item Number
TP075K-NPT18
TP075K-NPTF18
TP100K-NPT14
TP100K-NPTF14
1° 47’
External
Insert Length (A)
Insert Thickness (B)
mm
mm
18
18
14
14
Internal
30°
19.05
19.05
25.40
25.40
GEN3SYS
Threads per Inch
Item Number
R
External
1° 47’
Revolution & Core Drill
Bolt-In Style Inserts BSPT Internal & External
Stk.
2.03
2.03
3.56
3.56
Note: Indexable Threadmill Inserts are sold in 2 piece packages
ASC 320 Solid Carbide
B
T-A & GEN2 T-A
®
Indexable Threadmills Metric/BSPT/NPT/NPTF and Holders
AM210® coated
E
B
C
D
Threadmill Holders Tapered Bolt-In Style NPT/NPTF/BSPT Internal & External
Item Number
Stk.
Insert
Shank Dia
(A)
Pilot Dia
(B)
OAL
(C)
Cutter Dia
(D)
Insert
Length (E)
Flutes
Screw
THT-0400-1F075M
THT-0659-1F100M
TP075K-NPT/NPTF/BSPT
TP100K-NPT/NPTF/BSPT
13.00
13.00
5.82
9.65
76.20
76.20
10.16
16.74
19.05
25.40
1
1
TMS-250
TMS-45
Note: Indexable Threadmill Inserts are sold in 2 piece packages
Special Tooling
Stk. - Stock Availability
Stocked.
Stocked in limited quantities
Non-Stocked Standard – 25 working days delivery
All other coatings are non-stocked standards – 25 working day delivery applies
Thread Milling
AccuPort 432
A
+44 (0)1384 400 900
+44 (0)1384 400 105
enquiries@alliedmaxcut.com
www.alliedmaxcut.com
199
AccuThread 856
T-A & GEN2 T-A
®
Indexable Threadmills Pin Style Inserts NPT/NPTF/BSP/BSPT/API
AM210® coated
30°
90°
1° 47’
Pin Style Inserts NPT/NPTF Internal & External
TN150K-NPT11.5
TN150K-NPTF11.5
TN150K-NPT8
TN150K-NPTF8
Threads per Inch
11.5
11.5
8
8
Internal
30°
A
B
Item Number
GEN3SYS
®
External
Insert Length (A)
Insert Thickness (B)
mm
mm
38.10
38.10
38.10
38.10
3.56
3.56
3.56
3.56
Stk.
Note: Indexable Threadmill Inserts are sold in 2 piece packages
BSP
Internal
RO 137P
ASC 320 Solid Carbide
Revolution & Core Drill
55°
RO 137P
External
BSPT
Internal
RO 137P
27.5° 27.5°
A
B
90°
Pin Style Inserts BSPP/BSPT Internal & External
Item Number
TN150K-BSPP11
TN150K-BSPT11
Threads per Inch
11
11
Insert Length (A)
Insert Thickness (B)
mm
mm
38.10
38.10
3.56
3.56
1° 47’
R
External
Stk.
AccuPort 432
Note: Indexable Threadmill Inserts are sold in 2 piece packages
30°
Internal
30°
A
B
90°
1° 47’
Item Number
TN150K-AP10
TN150K-AP8
Threads per Inch
10
8
External
Insert Length (A)
Insert Thickness (B)
mm
mm
38.10
38.10
3.56
3.56
Stk.
Note: Indexable Threadmill Inserts are sold in 2 piece packages
Special Tooling
Thread Milling
Pin Style Inserts API-ROUND Internal & External
200
+44 (0)1384 400 900
+44 (0)1384 400 105
enquiries@alliedmaxcut.com
www.alliedmaxcut.com
®
AccuThread 856
60°
Pin Style Inserts UN (Internal)
25.40
25.40
25.40
25.40
25.40
25.40
25.40
25.40
38.10
38.10
38.10
38.10
38.10
38.10
38.10
38.10
38.10
38.10
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
Stk.
Note: Indexable Threadmill Inserts are sold in 2 piece packages
Internal
1/4P
B
A
60°
Pin Style Inserts UN (External)
Item Number
Threads per Inch
TN100K-UN32E
TN100K-UN24E
TN100K-UN20E
TN100K-UN18E
TN100K-UN16E
TN100K-UN12E
TN100K-UN10E
TN100K-UN8E
TN100K-UN7E
TN150K-UN24E
TN150K-UN20E
TN150K-UN18E
TN150K-UN16E
TN150K-UN12E
TN150K-UN10E
TN150K-UN8E
TN150K-UN7E
TN150K-UN6E
32
24
20
18
16
12
10
8
7
24
20
18
16
12
10
8
7
6
1/8P
Insert Length (A)
Insert Thickness (B)
mm
mm
25.40
25.40
25.40
25.40
25.40
25.40
25.40
25.40
25.40
38.10
38.10
38.10
38.10
38.10
38.10
38.10
38.10
38.10
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
External
Stk.
Note: Indexable Threadmill Inserts are sold in 2 piece packages
+44 (0)1384 400 900
+44 (0)1384 400 105
enquiries@alliedmaxcut.com
GEN3SYS
mm
Revolution & Core Drill
32
24
20
18
16
12
10
8
24
20
18
16
14
12
10
8
7
6
Insert Thickness (B)
mm
ASC 320 Solid Carbide
TN100K-UN32I
TN100K-UN24I
TN100K-UN20I
TN100K-UN18I
TN100K-UN16I
TN100K-UN12I
TN100K-UN10I
TN100K-UN8I
TN150K-UN24I
TN150K-UN20I
TN150K-UN18I
TN150K-UN16I
TN150K-UN14I
TN150K-UN12I
TN150K-UN10I
TN150K-UN8I
TN150K-UN7I
TN150K-UN6I
Insert Length (A)
External
AccuPort 432
Threads per Inch
1/8P
Thread Milling
Item Number
Internal
1/4P
A
www.alliedmaxcut.com
Special Tooling
B
T-A & GEN2 T-A
®
Indexable Threadmills Pin Style UN
AM210® coated
201
AccuThread 856
Indexable Threadmills Pin Style UNJ
AM210® coated
T-A & GEN2 T-A
®
®
5/16P
A
B
60°
R max 0.18042P
R min 0.15011P
Pin Style Inserts UNJ Internal
TN100K-UNJ32I
TN100K-UNJ24I
TN100K-UNJ20I
TN100K-UNJ18I
TN100K-UNJ16I
TN100K-UNJ12I
TN100K-UNJ10I
TN150K-UNJ24I
TN150K-UNJ20I
TN150K-UNJ18I
TN150K-UNJ16I
TN150K-UNJ14I
TN150K-UNJ12I
TN150K-UNJ10I
TN150K-UNJ8I
Threads per Inch
32
24
20
18
16
12
10
24
20
18
16
14
12
10
8
Insert Length (A)
Insert Thickness (B)
mm
mm
25.40
25.40
25.40
25.40
25.40
25.40
25.40
38.10
38.10
38.10
38.10
38.10
38.10
38.10
38.10
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
5/16P
TN100K-UNJ32E
TN100K-UNJ24E
TN100K-UNJ20E
TN100K-UNJ18E
TN100K-UNJ16E
TN100K-UNJ12E
TN100K-UNJ10E
TN150K-UNJ24E
TN150K-UNJ20E
TN150K-UNJ18E
TN150K-UNJ16E
TN150K-UNJ12E
TN150K-UNJ10E
TN150K-UNJ8E
Threads per Inch
32
24
20
18
16
12
10
24
20
18
16
12
10
8
Internal
60°
R max 0.18042P
R min 0.15011P
Pin Style Inserts UNJ External
Item Number
Stk.
A
B
External
Insert Length (A)
Insert Thickness (B)
Inch
mm
25.40
25.40
25.40
25.40
25.40
25.40
25.40
38.10
38.10
38.10
38.10
38.10
38.10
38.10
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
External
Stk.
Special Tooling
Thread Milling
AccuPort 432
ASC 320 Solid Carbide
Revolution & Core Drill
GEN3SYS
Item Number
Internal
202
+44 (0)1384 400 900
+44 (0)1384 400 105
enquiries@alliedmaxcut.com
www.alliedmaxcut.com
®
AccuThread 856
60°
Pin Style Inserts Metric Internal
mm
mm
38.10
38.10
38.10
38.10
38.10
38.10
38.10
38.10
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
B
Stk.
Pitch
TN150K-M2.0E
TN150K-M4.0E
TN150K-M4.5E
TN150K-M5.0E
TN150K-M6.0E
2.0
4.0
4.5
5.0
6.0
60°
1/8P
Insert Length (A)
Insert Thickness (B)
mm
mm
38.10
38.10
38.10
38.10
38.10
3.56
3.56
3.56
3.56
3.56
B
Threads per Inch
12
10
8
12
10
8
6
5
Internal
External
Insert Length (A)
Insert Thickness (B)
mm
mm
25.40
25.40
25.40
38.10
38.10
38.10
38.10
38.10
3.56
3.56
3.56
3.56
3.56
3.56
3.56
3.56
Stk.
Special Tooling
TN100K-FA12
TN100K-FA10
TN100K-FA8
TN150K-FA12
TN150K-FA10
TN150K-FA8
TN150K-FA6
TN150K-FA5
External
Stk.
29°
A
Pin Style Inserts (Full Profile) ACME Internal & External
Item Number
Internal
1/4P
A
Pin Style Inserts Metric External
Item Number
GEN3SYS
2.0
2.5
3.0
3.5
4.0
4.5
5.0
6.0
Insert Thickness (B)
Revolution & Core Drill
TN150K-M2.0I
TN150K-M2.5I
TN150K-M3.0I
TN150K-M3.5I
TN150K-M4.0I
TN150K-M4.5I
TN150K-M5.0I
TN150K-M6.0I
Insert Length (A)
External
ASC 320 Solid Carbide
Pitch
1/8P
AccuPort 432
Item Number
Internal
1/4P
A
Thread Milling
B
T-A & GEN2 T-A
®
Indexable Threadmills Pin Style Metric & ACME
AM210® coated
+44 (0)1384 400 900
+44 (0)1384 400 105
enquiries@alliedmaxcut.com
www.alliedmaxcut.com
203
AccuThread 856
Indexable Threadmill Pin Style Holders
T-A & GEN2 T-A
®
®
E
D
A
B
Pin Style Holders UN/NPT/ISO/ACME/API/NPTF/BSP & BSPT (Internal & External)
Item Number
Stk.
THP-0969-2F100M
THP-1755-5F100M
THP-0932-1F150M
THP-1116-3F150M
THP-1755-5F150M
THP-0969-2F150M
Insert
Size
Coolant
Port
Shank
Dia (A)
Pilot
Dia (B)
OAL
(C)
Cutter Dia
(UN)
Straight
(D)
Cutter Dia
(NPT)
Tapered
(D)
Insert
Length
(E)
Flutes
Screw
Pin
TN100KTN100KTN150KTN150KTN150KTN150K-
N
Y
N
Y
Y
N
25.00
32.00
25.00
25.00
32.00
25.00
19.05
38.10
18.34
20.63
38.10
19.05
114.30
101.60
114.30
114.30
114.30
114.30
24.61
44.58
23.67
28.35
44.58
24.61
27.05
31.67
47.96
-
25.40
25.40
38.10
38.10
38.10
38.10
2
5
1
3
5
2
TMSS-3
TMSS-2
TMSS-2
TMSS-3
TMSS-2
TMSS-3
TMP-6
TMP-1
TMP-2
TMP-2
TMP-2
TMP-6
ASC 320 Solid Carbide
Revolution & Core Drill
GEN3SYS
C
E
B
F
A
C
Pin Style Holders (Shell Mill) UN/ISO/ACME/BSP (Internal & External)
Item Number
Stk.
TSN-2846-7F150M
TSN-3341-8F150M
Insert
Size
Body Dia
(A)
Bore Dia
(B)
OAL
(C)
TN150KTN150K-
63.50
76.20
27.00
32.00
57.15
57.15
Cutter Dia
Insert
Slot Width
(D)
Length (E)
(F)
68.94*
81.48*
38.10
38.10
12.70
14.00
Flutes
Screw
Pin
7
8
TMSS-2
TMSS-2
TMP-2
T
* For larger thread forms this diameter will change. Please refer to on-line programming at www.alliedmaxcut.com
Special Tooling
Thread Milling
AccuPort 432
D
204
+44 (0)1384 400 900
+44 (0)1384 400 105
enquiries@alliedmaxcut.com
www.alliedmaxcut.com
Recommended Cutting Data
Solid Carbide Threadmills
Alloy Steel
High Strength Alloy
Structural Steel
Tool Steel
High Temperature Alloy
Stainless Steel
Stainless Steel PH
Cast Iron
Aluminium, Wrought
Cast Aluminium*
Brass
274
213
152
274
213
183
152
175
152
137
122
175
152
137
122
114
137
122
107
183
152
137
175
152
37
27
160
152
91
46
206
191
175
152
145
335
305
191
335
6
8
10
12
16
19
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.008
0.008
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.010
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.010
0.010
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.013
0.015
0.015
0.015
0.015
0.018
0.018
0.018
0.018
0.018
0.018
0.018
0.015
0.015
0.015
0.015
0.015
0.015
0.015
0.015
0.015
0.015
0.015
0.015
0.018
0.018
0.018
0.018
0.018
0.015
0.015
0.015
0.015
0.015
0.015
0.018
0.018
0.018
0.018
0.018
0.023
0.023
0.023
0.023
0.023
0.023
0.023
0.023
0.023
0.023
0.023
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.023
0.023
0.023
0.023
0.023
0.020
0.020
0.020
0.020
0.020
0.020
0.023
0.023
0.023
0.023
0.023
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.023
0.023
0.023
0.023
0.023
0.023
0.025
0.025
0.025
0.025
0.025
0.038
0.038
0.038
0.038
0.038
0.038
0.038
0.038
0.038
0.038
0.038
0.033
0.033
0.033
0.033
0.033
0.033
0.033
0.033
0.033
0.033
0.033
0.033
0.038
0.038
0.038
0.038
0.038
0.025
0.025
0.025
0.025
0.025
0.025
0.038
0.038
0.038
0.038
0.038
0.051
0.051
0.051
0.051
0.051
0.051
0.051
0.051
0.051
0.051
0.051
0.046
0.046
0.046
0.046
0.046
0.046
0.046
0.046
0.046
0.046
0.046
0.046
0.051
0.051
0.051
0.051
0.051
0.030
0.030
0.038
0.038
0.038
0.038
0.051
0.051
0.051
0.051
0.051
0.064
0.064
0.064
0.064
0.064
0.064
0.064
0.064
0.064
0.064
0.064
0.051
0.051
0.051
0.051
0.051
0.051
0.051
0.051
0.051
0.051
0.051
0.051
0.064
0.064
0.064
0.064
0.064
0.038
0.038
0.051
0.051
0.051
0.051
0.064
0.064
0.064
0.064
0.064
0.076
0.076
0.076
0.076
Formulas: Linear Feed Rate = RPM x mm/tooth x No. of Teeth
M/min = (RPM x 3.142 x Dia)/1000.
RPM = (M/min x 1000) / (Dia x 3.142)
Adjusted Feed Rate (AFR) for Internal Thread Milling = (Thread Major Dia – Cutter Dia) / major Dia) x Linear Feed Rate
The above formula on an internal thread program adjusts the linear feed rate to be applied to the O.D. instead of the centre of the cutting tool.
If the feed rate is not adjusted, the excessive feed rate will cause the thread mill cutting edges to fail.
Example of an Internal Thread Feed Rate Calculation: Cast Iron 125 BHN with a ½ - 13 thread form.
Step 1
Step 2
Step 3
RPM=(m/min x 1000)(Dia x 3.142)
Linear Feed Rate = RPM x mm/tooth x No of teeth
AFR for Internal Thread Milling = (Major Dia-Cutter Dia) / Major Dia) x
Linear Feed Rate
RPM=(152 x 1000)(8.89 x 3.142)
Linear Feed Rate = 5442 x 0.038 x 4
AFR for Internal Thread Milling = (12.7 – 8.89) / 12.7) x 827.18
RPM=5442
Linear Feed Rate = 827.18 mm/min
AFR for Internal Thread Milling = 248.15mm/min
Note:
Reduce feed and speed by 30% for NPT and NPTF Thread Forms due to tapered cutting action
* Uncoated thread mills are recommended for cast aluminium applications (price and availability upon request)
Refer to recommended pass chart on page 208 when referencing material machinability
+44 (0)1384 400 900
+44 (0)1384 400 105
enquiries@alliedmaxcut.com
www.alliedmaxcut.com
GEN3SYS
Medium Carbon Steel
Easy
Easy
Easy
Average
Average
Average
Average
Average
Average
Average
Average
Average
Average
Average
Difficult
Difficult
Average
Difficult
Difficult
Average
Average
Difficult
Difficult
Difficult
Difficult
Difficult
Average
Difficult
Average
Difficult
Easy
Easy
Easy
Average
Average
Easy
Easy
Easy
Easy
5
Revolution & Core Drill
Low Carbon Steel
100-150
150-200
200-250
85-125
125-175
175-225
225-275
125-175
175-225
225-275
275-325
125-175
175-225
225-275
275-325
325-375
225-300
300-350
350-400
100-150
150-250
250-350
150-200
200-250
140-220
220-310
135-185
185-275
185-275
275-325
120-150
150-200
200-220
220-260
260-320
30
180
120
30-125
3
ASC 320 Solid Carbide
Free Machining Steel
Recommended Feed (mm/tooth)
AccuPort 432
Material
AM210®
M/min
Thread Milling
Cutter (mm)
Material
Material
Hardness
Machinability
(BHN)
T-A & GEN2 T-A
®
Special Tooling
Technical Section - AccuThread 856
®
205
Technical Section - AccuThread 856
T-A & GEN2 T-A
®
Recommended Cutting Data
Indexable Threadmills
Material
GEN3SYS
Free Machining Steel
Low Carbon Steel
ASC 320 Solid Carbide
Revolution & Core Drill
Medium Carbon Steel
Alloy Steel
High Strength Alloy
Structural Steel
Tool Steel
High Temperature Alloy
Stainless Steel
Stainless Steel PH
Aluminium, Wrought
Cast Aluminium*
Cutter Diameter (Metric)
9.5312.7
12.7019.05
19.0525.40
25.4038.10
38.1050.80
50.8069.85
69.8588.90
Number of Flutes)
1
1
1&2
3
5
7
8
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.06
0.06
0.06
0.06
0.06
0.05
0.05
0.05
0.05
0.05
0.05
0.10
0.10
0.10
0.10
0.10
0.13
0.13
0.13
0.14
0.08
0.08
0.08
0.08
0.08
0.08
0.08
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.08
0.08
0.08
0.08
0.08
0.06
0.06
0.06
0.06
0.06
0.06
0.13
0.13
0.13
0.13
0.13
0.15
0.15
0.15
0.17
Material
Hardness
(BHN)
Material
Machinability
AM210®
M/min
100-150
150-200
200-250
85-125
125-175
175-225
225-275
125-175
175-225
225-275
275-325
125-175
175-225
225-275
275-325
325-375
225-300
300-350
350-400
100-150
150-250
250-350
150-200
200-250
140-220
220-310
135-185
185-275
185-275
275-325
120-150
150-200
200-220
220-260
260-320
30
180
120
30-125
Easy
Easy
Easy
Average
Average
Average
Average
Average
Average
Average
Average
Average
Average
Average
Difficult
Difficult
Average
Difficult
Difficult
Average
Average
Difficult
Difficult
Difficult
Difficult
Difficult
Average
Difficult
Average
Difficult
Easy
Easy
Easy
Average
Average
Easy
Easy
Easy
Easy
274
213
152
274
213
183
152
175
152
137
122
175
152
137
122
114
137
122
107
183
152
137
175
152
37
27
160
152
91
46
206
191
175
152
145
335
305
191
335
Chipload per Tooth (mm per tooth)
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.02
0.02
0.02
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.02
0.02
0.02
0.02
0.02
0.04
0.04
0.03
0.05
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.03
0.03
0.03
0.03
0.03
0.02
0.02
0.02
0.02
0.02
0.02
0.03
0.03
0.03
0.03
0.03
0.05
0.05
0.05
0.06
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.02
0.02
0.02
0.02
0.02
0.02
0.04
0.04
0.04
0.04
0.04
0.06
0.06
0.06
0.08
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.04
0.04
0.04
0.04
0.04
0.03
0.03
0.04
0.04
0.04
0.04
0.05
0.05
0.05
0.05
0.05
0.08
0.08
0.08
0.10
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.05
0.05
0.05
0.05
0.05
0.04
0.04
0.04
0.04
0.04
0.04
0.08
0.08
0.08
0.08
0.08
0.10
0.10
0.10
0.11
Formulas: Linear Feed Rate = RPM x mm/tooth x No. of Teeth
M/min = (RPM x 3.142 x Dia)/1000.
RPM = (M/min x 1000) / (Dia x 3.142)
Adjusted Feed Rate (AFR) for Internal Thread Milling = (Thread Major Dia – Cutter Dia) / major Dia) x Linear Feed Rate
The above formula on an internal thread program adjusts the linear feed rate to be applied to the O.D. instead of the centre of the cutting tool.
If the feed rate is not adjusted, the excessive feed rate will cause the thread mill cutting edges to fail.
Note:
Reduce feed and speed by 30% for NPT and NPTF Thread Forms due to tapered cutting action
*Uncoated thread mills are recommended for cast aluminium applications (price and availability upon request)
Refer to recommended pass chart on page 208 when referencing material machinability
Special Tooling
Thread Milling
AccuPort 432
Cast Iron
Brass
®
206
+44 (0)1384 400 900
+44 (0)1384 400 105
enquiries@alliedmaxcut.com
www.alliedmaxcut.com
Technical Section
®
T-A & GEN2 T-A
G Code Programming Guide
• Thread Milling can be easily accomplished with simple G code programming
• If your machine is capable of 3 axis (Helical) Interpolation, you can and should be thread milling
• Basic programming of a one pass thread mill can be achieved in 6 basic steps (see below)
The following are examples of how to calculate and program a 7/16-20 right hand thread that will be 1/2“ deep
and produced in one pass
GEN3SYS
Major diameter of thread (7/16 = 0.4375”)
Number of threads per inch (20 is from 7/16-20 designation)
Desired length of thread
Recommended surface speed for material to be cut
Recommended feet rate per cutting edge
Number of flutes on tool to be used
Diameter of cutting tool
Using the information below, the values can be calculated
Feed Rate For Thread Milling
Z axis Depth for Full Thread
Z axis Move for Arc On/Off
322.43
12.86
0.16
Arc On/Off
Full Rotation Value
Pitch Value
Revolution & Core Drill
11.112
8.509
12.7
= 25.4/Threads Per Inch
(m/min / Tool Dia) x 318
RPM x Feed Per Flute x Number of Flutes
Linear Feed x (Maj Thread Dia – Tool Dia) / Maj Thread Dia
(Pitch / 8) + Length Of Thread
(Pitch / 8)
(Maj Thread Dia – Tool Dia) / 4
(Maj Thread Dia – Tool Dia) 2
0.65
1.302
1.27
Incremental Program for 1 Pass Thread Mill
1
N10
S
N20
N30
G90
2
N40
G91
3
N50
G41
N60
4
N70
5
N80
N90
6
G40
N100
N110
G90
5416
MO3
Absolute position in rapid to centre of hole in X and Y, then rapid to Z0 (level with surface of hole) (assumed to be X0, Y0, Z0 for
demonstration purposes). To be done by customer.
G00
X 0.0000
Y 0.000
Z 0.000
Switch to incremental positioning and high feed to (Z axis depth for full thread).
G01
Z – 12.860
F 1270
Activate left diameter compensation for tool number 1 (‘D’ needs to be whatever tool number you are using) and feed to (arc on/off
position) at 25% (feed rate for thread milling).
G01
X 0.650
Y 0.650
D1
F 80.600
CCW arc to full rotation from the arc on position at the calculated thread milling feedrate moving Z up (+) 1/8 pitch value (Z axis move
up for arc on/off). X and Y positions are the incremental distance from where tool is to where it will be after arc (arc on/off value). I is
the incremental X value of center of rotation from where tool currently is (arc on/off value multiplied by –1). J is the incremental Y value
from current tool position to centre of rotation.
G03
X –0.650
Y 0.650
Z 0.160
I -0.650
J 0.00
F 322.43
One complete CCW arc from the full arc rotation position at the calculated thread milling feed rate moving Z up (positive pitch value).
I and J values are calculated the same as above. I will be 0.0 and J will be (full rotation value multiplied by –1).
G03
X 0.0000
Y 0.0000
Z 1.270
I 0.000
J -1.302
F 322.43
CCW arc from full rotation diameter to arc off position at double the calculated thread milling feed rate moving Z up (+) 1/8 pitch value
(Z axis move up for arc on/off). I and J values.
G03
X –0.650
Y -0.650
Z 0.160
I 0.000
J -0.650
F 644.12
Shut off cutter comp and move from arc off position to centre of hole in X (arc on/off value multiplied by –1) and Y (arc on/off value
multiplied by –1) at high feed rate.
G01
X 0.650
Y -0.650
Rapid Z up incremental value (length of thread – all Z values in G03 arc commands).
GO0
Z 11.270
Switch back to absolute positioning and rapid to a safe point in Z above part level (assumed to be 25mm above part level for
demonstration purposes).
GO0
Z 25.000
1
N10-N30
2
N40
3
N50-N60
4
N70
5
N80-N90
6
N100-N110
Preparatory commands
Positioning above hole
center and at hole level
in Z in absolute position
mode
Change to incremental
mode Feed to bottom of
hole (Z axis depth for
full thread)
Activate left cutter
comp Feed to arc on
position Arc to full
rotation value while
moving Z up 1/8 pitch (Z
axis move for arc on)
One complete CCW
rotation at full arc
rotation value while
moving Z up 1 pitch
value
CCW are from full
rotation value to the arc
on/off value while
moving Z up 1/8 pitch (Z
axis move for arc on)
Rapid up in Z
+44 (0)1384 400 900
+44 (0)1384 400 105
enquiries@alliedmaxcut.com
www.alliedmaxcut.com
ASC 320 Solid Carbide
Maj Thread Dia.
Cutter Diameter
Length Of Thread
1.27
5419
1376.43
322.43
12.86
0.16
0.650
1.302
AccuPort 432
Pitch (mm)
RPM
Linear Feed (mm/min)
Feed Rate for Thread Milling
Z axis move for full thread
Z axis move on Arc On
Arc On/Off Value
Full Rotation Value
Thread Milling
11.112
20
12.7
145
0.0635
4
8.509
Special Tooling
Maj. Thread Diameter (mm)
Threads Per Inch
Length of Thread (mm)
M/min Surface Speed
Feed Per Flute (mm/tooth)
Number of Flutes
Tool Diameter (mm)
207
Technical Section
T-A & GEN2 T-A
®
Number of Passes UN
Number of Passes NPT/NPTF
Thread Size
Revolution & Core Drill
GEN3SYS
1/16 NPT
1/8 NPT
¼ NPT
3/8 NPT
½ NPT
¾ NPT
1 NPT
1-1/4 NPT
1-1/2 NPT
2 NPT
2-1/2 NPT
3 NPT
3-1/2 NPT
4 NPT
5 NPT
6 NPT
Materials
Materials
Easy to Machine
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
Average to Machine Difficult to Machine
1
1
1
1
2
2
2
2
2
2
3
3
3
3
3
3
2
2
2
2
3
3
3
3
3
3
4
4
4
4
4
4
Number of Passes Metric (ISO)
Thread Size
ASC 320 Solid Carbide
M4.5 x .75
M5 x .80
M6 x .75
M6 x 1.0
M8 x .75
M8 x 1.25
M10 x 1.0
M10 x 1.5
M12 x 1.0
M12 x 1.75
M14 x 1.5
M14 x 2.0
M16 x 1.0
M16 x 2.0
M18 x 1.5
M18 x 2.0
M18 x 2.5
M20 x 2.5
M24 x 3.0
M30 x 3.5
M27 x 3.0
M33 x 3.5
M33 x 4.5
M36 x 4.0
M39 x 5.0
M39 x 4.0
M45 x 4.5
M52 x 5.0
M56 x 5.5
AccuPort 432
Thread Milling
Pass Chart & Threadmilling Formulas
Materials
Easy to Machine
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
Average to Machine Difficult to Machine
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3
3
3
3
2
2
2
2
3
3
3
3
3
3
3
3
3
3
3
3
4
4
4
4
4
4
4
4
4
4
4
4
4
Threadmill Drill Calculation
Inch
Special Tooling
Based on nominal tap drill diameter. Based on .003” or .0.075mm probable mean oversize
To calculate percent of full thread for given hole diameter:
% Thread = No of Threads per Inch x (Basic Major Dia of thread (Inch) – Drill Hole Size (Inch)
0.0130
208
Thread Size
#2-56
#4-40
#5-40
#6-32
#8-32
#10-32
#10-24
#12-28
#12-24
¼-28
¼-20
5/16-24
5/16-18
¾-24
3/8-16
7/16-20
7/16-14
½-20
½-13
9-16-18
9-16-2
5/8-18
5/8-11
¾-16
¾-10
7/8-14
7/8-9
1-14
1-10
1-8
1-1/8-7
1-1/4-7
1-3/8-6
1-1/2-6
1-3/4-5
2-4 ½
1-1/4-4 1/2
2-1/2-4
25-3/4-4
3-4
Easy to Machine
Average to Machine Difficult to Machine
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
2
1
2
1
2
2
2
2
2
2
2
2
2
2
2
2
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
3
2
3
2
3
2
3
3
3
3
3
3
3
3
3
3
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3
3
3
3
4
3
4
3
4
3
4
4
4
4
4
4
4
4
4
4
4
4
Easy Machining Materials:
Non-ferrous and leaded steels
Average Machining Materials: Carbon and alloy steels up to 30 Rc.
300 and 400 series stainless
Difficult Machining Materials: Inconels, harder steels, titanium,
17-4PH Stainless
Thread Milling Formulas
Linear Feed Rate = RPM * (mm/tooth x No of flutes)
M/min = (RPM x 3.142 x DIA/1000)
RPM = (m/min x 1000)/DIA x 3.142
AFR = (Major Diameter – Cutter Diameter) / Major Diameter) * Linear Feed Rate
Arc On/Off Value = (Major Diameter – Tool Diameter) / 4
2 Axis Move Full Thread = (Pitch / 8) + Length of Thread
2 Axis Move Arc On = (Pitch / 8)
Major Thread Diameter for # Drills
Metric
76.93
% Thread = Pitch (mm)
* (Basic Major Diameter of thread (mm) - Drill Hole Size (mm)
+44 (0)1384 400 900
+44 (0)1384 400 105
#2
2.18
#5
3.17
# 10
4.83
#3
2.51
#6
3.35
# 12
5.49
#4
2.84
#8
4.16
enquiries@alliedmaxcut.com
www.alliedmaxcut.com
Technical Section
Decimal
Inches
Thread
Specification
Uses this
drill
Closest
Fraction
Decimal
Inches
2-56
3-56
4-40
¼-40
5-40
6-40
M4x0.7
M4x0.75
8-32
8-40
3/16-24
10-24
3/16-32
10-32
M5-0.8
M5-0.9
12-24
12-28
12-32
14-20
¼-20
14-24
M6-1.0
¼-24
¼-28
¼-32
¼-40
M7-1.0
5/16-18
M8-1.25
5/16-24
M8-1.0
5/16-32
M9-1.25
3/8-16
M9-1.0
M9-0.75
3/8-24
M10-1.5
M10-1.25
M10-1.0
7/16-14
M11-1.5
7/16-20
M12-1.75
M12-1.5
½-13
M12-1.25
50
45
43
38
38
33
3.4mm
3.4mm
29
28
26
25
22
21
4.2mm
4.3mm
16
14
13
10
7
7
5.2mm
4
3
7/32”
1
6.1mm
F
6.9mm
I
7.1mm
9/32”
7.9mm
5/16”
8.1mm
8.3mm
Q
8.7mm
8.9mm
9.1mm
U
9.7mm
25/64”
10.5mm
10.7mm
27/64”
10.9mm
3/32”
5/32”
5/32”
11/64”
3/16”
13/64”
7/32”
7/32”
15/64”
17/64”
17/64”
9/32”
5/16”
21/64”
11/32”
23/64”
25/64”
27/64”
27/64”
27/64”
0.0700
0.0820
0.0890
0.1015
0.1015
0.1130
0.133
0.1338
0.1360
0.1405
0.1470
0.1495
0.1570
0.1590
0.1653
0.1693
0.1770
0.1820
0.1850
0.1935
0.2010
0.2010
0.2047
02090
0.2130
0.2188
0.2280
0.2401
0.2570
0.2716
0.2720
0.2795
0.2812
0.3110
0.3125
0.3189
0.3268
0.3320
0.3425
0.3503
0.3583
0.3680
0.3818
0.3906
0.4133
0.4212
0.4291
0.4291
½-20
½-24
M14-2.0
9/16-12
M14-1.5
M14-1.25
9/16-18
5/8-11
M16-2.0
5/8-18
M16-1.5
11/16-11
M18-2.5
11/16-16
3/4-10
M18-1.5
3/4-16
M20-2.5
7/8-9
7/8-14
M22-1.5
7/8-18
M24-3.0
1-8
M24-2.0
1-12
1-14
1-1/8-7
1-1/8-12
1-1/4-7
1-1/4-12
1-3/8-6
1-3/8-12
1-1/2-6
1-1/2-12
29/64”
29/64”
12.2mm
31/64”
12.7mm
12.8mm
33/64”
17/32”
14.2mm
37/64”
14.7mm
19/32”
15.8mm
5/8”
21/32”
16.8mm
11/16”
17.8mm
49/64”
13/16”
20.9mm
53/64”
21.4mm
7/8”
22.3mm
59/64”
15/16”
63/64”
1-3/64”
1-7/64”
1-11/64”
1-7/32”
1-19/64”
1-11/32”
1-27/64”
29/64”
29/64”
31/64”
33/64”
17/32”
35/64”
37/64”
19/32”
39/64”
5/8”
21/32”
11/16”
11/16”
49/64”
13/16”
53/64”
53/64”
7/8”
59/64”
15/16”
63/64”
1-3/64”
1-7/64”
1-11/64”
1-7/32”
1-19/64”
1-11/32”
1-27/4”
0.4531
0.4531
0.4803
0.4844
0.4999
0.5039
0.5156
0.5312
0.5590
0.5781
0.5787
0.5938
0.5220
0.6250
0.6562
0.6614
0.6875
0.7008
0.7656
0.8125
0.8228
0.8281
0.8425
0.8750
0.8779
0.9219
0.9375
0.9844
1.0469
1.1094
1.1719
1.2188
1.2969
1.3438
1.4219
Uses this
drill
Closest
Fraction
Decimal
Inches
1/8-27 NPT
¼-18 NPT
3/8-18 NPT
½-14 NPT
¾-14 NPT
1-11-1/2 NPT
1-1/4-11.5 NPT
1-1/2-11.5 NPT
2-11.5 NPT
R
7/16”
37/64”
45-64”
59/64”
1-5/32”
1-1/2”
1-47/64”
2-7/32”
7/16”
37/64”
45/64”
59/64”
1-5/32”
1-1/2”
1-47/64”
2-7/32”
0.3390
0.4375
0.5781
0.7031
0.9219
1.1562
1.5000
1.7344
2.2188
To calculate percent of full thread for a given hole diameter
76.93
x
Pitch (mm)
+44 (0)1384 400 900
Basic Major Diameter
Of thread (inch)
Basic Major Diameter
Of thread (mm)
.0130
-
+44 (0)1384 400 105
Drill Hole
Size (inch)
Special Tooling
% Thread =
x
Thread Milling
Thread
Specification
AccuPort 432
Major Thread Diameter for # Drills
Based on nominal tap drill diameter. Based on .003” or 0.075mm
probable mean oversize.
% Thread = # of Threads per Inch
GEN3SYS
Closest
Fraction
Revolution & Core Drill
Uses this
drill
ASC 320 Solid Carbide
Thread
Specification
T-A & GEN2 T-A
®
Thread Specification and Drill Chart
Drill Hole
Size (mm)
enquiries@alliedmaxcut.com
www.alliedmaxcut.com
209
Technical Section
Thread Milling methods
Internal
External
Right hand thread conventional milling
Right hand thread conventional milling
Left hand thread conventional milling
Left hand thread conventional milling
Right hand thread climb milling
Right hand thread climb milling
Left hand thread climb milling
Left hand thread climb milling
Special Tooling
Thread Milling
AccuPort 432
ASC 320 Solid Carbide
Revolution & Core Drill
GEN3SYS
T-A & GEN2 T-A
®
210
+44 (0)1384 400 900
+44 (0)1384 400 105
enquiries@alliedmaxcut.com
www.alliedmaxcut.com
Technical Section
®
H
D
X
Y
Z
R
I
J
M3
M5
M30
O
N
(
)
Tool length compensation number
Tool radius compensation number
X coordinate
Y coordinate
Z coordinate
Radius of travel
X coordinate to centre of starting arc travel
Y coordinate to centre of starting arc travel
Spindle clockwise rotation
Spindle stop
Programme end & rewind
Programme number
Block number (can be avoided)
Start of comment
End of comment
Troubleshooting guide
Increased
insert flank
wear
Chipping of
cutting edge
Material
build up on
the cutting
edge
Possible cause
Solution
Cutting speed too high
Reduce cutting speed
Chip is too thin
Increase feed rate
Insufficient coolant
Increase coolant flow rate
Chip is too thick
Reduce feed rate / use the tangential arc
method / increase RPM
Vibration
Check stability
Incorrect cutting speed
Change cutting speed
Feed rate is too high
Reduce the feed
Profile is too deep
Execute two passes, each with increased
cutting depth / Execute two passes, each
cutting only half the thread length
Thread length is too long
Execute two passes, each cutting only half
the thread length
Tool deflection
Reduce feed rate / execute a “ZERO” cut
Chatter/
vibration
GO
AccuPort 432
Problem
NOGO
Insufficient
thread
accuracy
+44 (0)1384 400 900
+44 (0)1384 400 105
enquiries@alliedmaxcut.com
Revolution & Core Drill
Recognition Code (ISO or EIA), +End of tape
Rapid Traverse
Linear interpolation
Circular/Helical interpolation CW
Circular/Helical interpolation CCW
Cutter radius compensation cancel
Cutter radius compensation left
Cutter radius compensation right
Tool length compensation +
Tool length compensation cancel
Work coordinate system selection
Absolute command relative to work coordinate origin
Incremental command relative to tool position
Feed mm/min
Spindle speed RPM
www.alliedmaxcut.com
Thread Milling
%
G00
G01
G02
G03
G40
G41
G42
G43
G49
G57
G90
G91
F
S
Description
Code
Special Tooling
Description
Code
ASC 320 Solid Carbide
G codes (ISO) for CNC Programme
GEN3SYS
T-A & GEN2 T-A
G Codes & Troubleshooting Guide
211
Technical Section
Th
r
accead M
ele ill
rat is s
ed ho
or win
Cu
ex c g
ttin
ess
ge
ive
dg
we
es
ar
Th
are
rea
c
hip
the d m
pin
firs ill
g
t h is b
ole rea
Th
or kin
rea
pa g in
ex c d m
rt
ess ill
ive is c
r
c
e
h
a
Ou
att tin
t
er g
pro of r
du oun
c ed d
thr
ea
Be
di
ll
s
(sm mou
all the
at d t
bo hre
tto ad
Pa
r
m, fo
rout reje
big rm
c
gh tio
at
fla n b
top
nk ec
)
a
i
n
u
ser se
Ste
t
of
ps
in
thr
ea
dp
Ga
rof
ug
ile
pa e d
rt t iff
o p ere
art nce
Ma
fro
m
pa chine
ths n
o
to t m
cre ak
Co
ate ing
n
thr co
the trol
ea rre
d p ct
pro not
a
rof
gra cc
ile
m ept
ing
Troubleshooting Guide
Cause
Catalogue
T-A & GEN2 T-A
®
Incorrect tool selection
1
Incorrect speed and feed selection
2,3
Speed and Feed
4
Machine tool specifications restricts RPM’s
Feed rate too high
7
Feed rate too low
4
7
7
7
Incorrect adjusted feed rate adjustment ratio
12
7,19
20
Thread mill moved or slipped in its holding device
13
13
13
Tool is sticking out of the holder too far
15
15
15
Run out between thread mill and holder
Incorrect coating creating built up edge
20
13
13
13
15
15
15
10
10
8,17
9
9
11
Machine
Excessive tool pressure
7,11,14
16
16
Insufficient coolant pressure or flow
17
17
Lack of machine rigidity
16
16
16
16
16
Incorrect number of passes
22
Incorrect program variables
18,26
16
16
Didn’t account for X/Y radial moves for tapered threads
15.
Refer to the catalogue to ensure proper tool selection.
Verify the correct speed was selected from the catalogue speed
and feed chart.
Verify the correct feed rate was selected from the catalogue
speed and feed chart.
Increase the spindle speed (RPM)
Decrease the spindle speed (RPM)
Increase the feed per tooth (mmpt)
Decrease the feed per tooth (mmpt)
Investigate other coatings
Increase the tool helix.
Gauge run out between thread mill and tool holder.
Perform tool change at quicker intervals.
Adjust the feed rate ratio properly to the correct actual penetration
rate for internal threads. Refer to page 208 for formula.
Use hydraulic clamping chuck.
Check the tool for excessive wear, beginning threads will wear
the fastest.
Make the amount of overhang in the holding device as short
as possible.
+44 (0)1384 400 900
16
18,26
24,26
23,26
+44 (0)1384 400 105
23,26
21,26
Machine tool control is not formatted to standard EIA/ASC11/ISO Code
13.
14.
16
22
Helical interpolation option not on machine or turned “off”
4.
5.
6.
7.
8.
9.
10.
11.
12.
11
7,11,14
Work piece moving in its fixturing
Incorrect cutter compensation variables
15
8,17
Excessive thread mill wear
3.
7
6
Ramp-in is programmed as an axial move
Programming
ASC 320 Solid Carbide
AccuPort 432
Thread Milling
4
5,19
Machine tool specification restrict feed rate
1.
2.
Special Tooling
2,3
5
Helix angle too low
212
1
2,3
RPM too low
Tool
Revolution & Core Drill
GEN3SYS
RPM too high
2,3
21,26
25,26
16. Verify the work piece is being properly clamped, retighten or
increase stability if necessary
17. Increase the coolant flow and volume
18. Check the milling program variables, especially the positive or
negative value associated with I and J values.
19. Make sure the machine tool has the appropriate axis and path
speed capabilities.
20. Make sure the thread mill is arcing in the major diameter instead
of making a radial move.
21. Make sure the machine tool had helical interpolation option and
that is “on”
22. Increase the number of thread mill passes.
23. Make sure the cutter comparison variables are input into the G41.
24. Adjust the program for pipe tap threads to taper out on diameter
in X/Y directions to create proper form.
25. Request information from the machine tool builder regarding its
programming formats.
26. Fax a copy of your programme to Allied Maxcut Engineering
Department at (+44) 1384 408372
enquiries@alliedmaxcut.com
www.alliedmaxcut.com