Page 391 - Carmex - Inch Catalog 2022

®
Mill-Thread Technical Section

Cutting Data

CMT Milling cutter

MT7 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.

ISO Material Cutting Speed Feed
Standard ft/min inch/tooth
Low and Medium Carbon Steels <0.55%C 197 - 394 .0020-.0059
P High Carbon Steels ≥0.55%C 197 - 295 .0020-.0039
Alloy Steels, Treated Steels 164 - 262 .0020-.0039
Stainless Steel-Free Cutting 230 - 328 .0016-.0051
M Stainless Steel-Austenitic 197 - 295 .0016-.0039
Cast Steels 230 - 295 .0016-.0051
K Cast Iron 131 - 262 .0020-.0059

Aluminum ≤12%Si, Copper 328 - 656 .0020-.0098
N Aluminum >12%Si 197 - 459 .0012-.0039
Synthetics, Duroplastics, Thermoplastics 164 - 656 .0020-.0098
S Nickel alloys, Titanium Alloys. 66 - 131 .0012-.0039
H Hardened Steel, ≤ 45 HRc 197 - 230 .0012-.0039

B12-11