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Mill-Thread Technical Section
Cutting Data CMT type
Sub-Micron Grade with Titanium Aluminum Nitride multi-layer coating (ISO K10 - K20). This is a general purpose grade, which can be used with all materials; it should be run at medium to high cutting speeds. MT7
Feed mm/tooth Cutting Diameter=D
Cutting Speed m/min 60 - 120 60 - 90 50 - 80 70 - 100 60 - 90 70 - 90 40 - 80 100 - 200 60 - 140 50 - 200 20 - 40 60 - 70 50 - 60
ISO
Materials
ø 10
ø 12
ø 18
ø 25
Low and Medium Carbon Steels <0.55%C
0.16 0.17 0.20 0.22 0.14 0.16 0.20 0.22 0.10 0.12 0.16 0.18
P
High Carbon Steels ≥0.55%C Alloy Steels, Treated Steels Stainless Steels - Free Cutting Stainless Steels - Austenitic
0.10 0.10
0.11 0.11
0.15 0.17 0.15 0.17
M
Cast Steels
0.10 0.12 0.16 0.18 0.16 0.17 0.20 0.22 0.16 0.17 0.20 0.22
K
Cast Iron
Aluminum ≤12%Si, Copper
N
Aluminum >12% Si
0.10
0.11
0.16 0.18
Synthetics, Duroplastics, Thermoplastics
0.19 0.19 0.22 0.24 0.07 0.07 0.10 0.12 0.09 0.09 0.13 0.15 0.08 0.08 0.12 0.14
S H
Nickel Alloys, Titanium Alloys Hardened Steel 45 - 50HRc Hardened Steel 50 - 55HRc
Thread Milling start position
arc entrance
end point
Thread Milling
arc exit
B12-9
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