Page 381 - Carmex - Metric Catalog 2021

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Mill-Thread Technical Section

Cutting Data

DMT type

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.

Cutting Feed mm/tooth
ISO Materials Speed
m/min
ø3 ø4 ø5 ø6 ø8 ø9 ø10 ø12
Low and Medium Carbon Steels < 0.55%C 60 - 120 0.02 0.03 0.03 0.04 0.05 0.05 0.05 0.05
P High Carbon Steels ≥ 0.55%C 60 - 90 0.015 0.02 0.03 0.03 0.04 0.04 0.04 0.05
Alloy Steels, Treated Steels 50 - 80 0.015 0.02 0.02 0.02 0.02 0.03 0.03 0.04
Stainless Steels - Free Cutting 70 - 100 0.015 0.02 0.02 0.02 0.02 0.03 0.03 0.03
M
Stainless Steels - Austenitic 60 - 90 0.015 0.02 0.02 0.02 0.02 0.03 0.03 0.03
Cast Steels 70 - 90 0.015 0.02 0.02 0.02 0.02 0.03 0.03 0.04
K Cast Iron 40 - 80 0.02 0.03 0.03 0.04 0.05 0.05 0.05 0.05
Aluminum ≤12%Si, Copper 100 - 200 0.02 0.03 0.03 0.04 0.05 0.05 0.05 0.05
N Aluminum >12% Si 60 - 140 0.015 0.02 0.02 0.02 0.02 0.03 0.03 0.03
Synthetics, Duroplastics, Thermoplastics 50 - 200 0.03 0.04 0.05 0.05 0.06 0.06 0.06 0.06

DMTH type

MT11 Ultra-fine Sub-Micron grade with advanced PVD triple Blue coating.

Cutting Feed mm/tooth
ISO Materials Speed
m/min
ø2 ø3 ø4 ø5 ø6 ø8 ø9 ø10 ø12
Low and Medium Carbon
60 - 120 0.02 0.02 0.03 0.03 0.04 0.05 0.05 0.05 0.05
Steels < 0.55%C
P High Carbon Steels ≥ 0.55%C 60 - 90 0.02 0.02 0.02 0.03 0.03 0.04 0.04 0.04 0.05

Alloy Steels, Treated Steels 50 - 80 0.02 0.02 0.02 0.02 0.02 0.02 0.03 0.03 0.04
Stainless Steels - Free Cutting 70 - 100 0.02 0.02 0.02 0.02 0.02 0.02 0.03 0.03 0.03
M
Stainless Steels - Austenitic 60 - 90 0.02 0.02 0.02 0.02 0.02 0.02 0.03 0.03 0.03
Cast Steels 70 - 90 0.02 0.02 0.02 0.02 0.02 0.02 0.03 0.03 0.04
K Cast Iron 40 - 80 0.03 0.03 0.03 0.03 0.04 0.05 0.05 0.05 0.05
Aluminum ≤10%Si, Copper 100 - 200 0.03 0.03 0.03 0.03 0.04 0.05 0.05 0.05 0.05

N Aluminum >10% Si 60 - 140 0.02 0.02 0.02 0.02 0.02 0.02 0.03 0.03 0.03
Synthetics, Duroplastics,
50 - 200 0.04 0.05 0.05 0.05 0.05 0.06 0.06 0.06 0.06
Thermoplastics
Nickel Alloys, Titanium Alloys
S 20 - 40 0.02 0.03 0.03 0.04 0.05 0.05 0.06 0.06 0.06
and High Temp. Alloys
Hardened Steels 45-50 HRc 60 - 70 0.02 0.02 0.02 0.03 0.04 0.04 0.05 0.05 0.05
H
Hardened Steels 50-55 HRc 50 - 60 0.01 0.01 0.01 0.02 0.03 0.03 0.04 0.04 0.04

B12-19