Page 373 - Carmex - Metric Catalog 2021

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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 Cutting Speed Feed
Material
Standard m/min mm/tooth
Low and Medium Carbon Steels <0.55%C 60 - 120 0.05 - 0.15
P High Carbon Steels ≥0.55%C 60 - 90 0.05 - 0.10
Alloy Steels, Treated Steels 50 - 80 0.05 - 0.10
Stainless Steel-Free Cutting 70 - 100 0.04 - 0.13
M Stainless Steel-Austenitic 60 - 90 0.04 - 0.10
Cast Steels 70 - 90 0.04 - 0.13
K Cast Iron 40 - 80 0.05 - 0.15

Aluminum ≤12%Si, Copper 100 - 200 0.05 - 0.25
N Aluminum >12%Si 60 - 140 0.03 - 0.10
Synthetics, Duroplastics, Thermoplastics 50 - 200 0.05 - 0.25
S Nickel alloys, Titanium Alloys. 20 - 40 0.03 - 0.10
H Hardened Steel, ≤ 45 HRc 60 - 70 0.03 - 0.10

B12-11