Page 400 - Carmex - Inch Catalog 2022

®
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 inch/tooth
ISO Materials Speed Cutting Diameter=D
ft/min Ø.16 Ø.20 Ø.24 Ø.31 Ø.35 Ø.39 Ø.47

Low and Medium Carbon Steels <0.55%C 200 - 395 .0012 .0012 .0016 .0020 .0020 .0020 .0020
P High Carbon Steels ≥0.55%C 200 - 295 .0008 .0012 .0012 .0016 .0016 .0016 .0020
Alloy Steels, Treated Steels
165 - 260 .0008 .0008 .0008 .0008 .0012 .0012 .0016

Stainless Steels - Free Cutting 230 - 330 .0008 .0008 .0008 .0008 .0012 .0012 .0012
M Stainless Steels - Austenitic 200 - 295 .0008 .0008 .0008 .0008 .0012 .0012 .0012
Cast Steels 230 - 295 .0008 .0008 .0008 .0008 .0012 .0012 .0016
K Cast Iron 130 - 260 .0012 .0012 .0016 .0020 .0020 .0020 .0020

Aluminum ≤12%Si, Copper 330 - 655 .0012 .0012 .0016 .0020 .0020 .0020 .0020
N Aluminum >12% Si 200 - 460 .0008 .0008 .0008 .0008 .0012 .0012 .0012
Synthetics, Duroplastics, Thermoplastics 165 - 655 .0016 .0020 .0020 .0024 .0024 .0024 .0024
DMTH type

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

Cutting Feed inch/tooth
ISO Materials Speed Cutting Diameter=D
ft/min Ø.08 Ø.12 Ø.16 Ø.20 Ø.24 Ø.31 Ø.35 Ø.39 Ø.47
Low and Medium Carbon Steels 190 - 390 .0008 .0008 .0012 .0012 .0016 .0020 .0020 .0020 .0020
<0.55%C
P High Carbon Steels ≥0.55%C 190 - 290 .0008 .0008 .0008 .0012 .0012 .0016 .0016 .0016 .0020
Alloy Steels, Treated Steels 160 - 260 .0008 .0008 .0008 .0008 .0008 .0008 .0012 .0012 .0016
Stainless Steels - Free Cutting 230 - 330 .0008 .0008 .0008 .0008 .0008 .0008 .0012 .0012 .0012
M
Stainless Steels - Austenitic 190 - 290 .0008 .0008 .0008 .0008 .0008 .0008 .0012 .0012 .0012

Cast Steels 230 - 290 .0008 .0008 .0008 .0008 .0008 .0008 .0012 .0012 .0016
Cast Iron
K 130 - 260 .0012 .0012 .0012 .0012 .0016 .0020 .0020 .0020 .0020

Aluminum ≤10%Si, Copper 330 - 650 .0012 .0012 .0012 .0012 .0016 .0020 .0020 .0020 .0020
N Aluminum >10% Si 190 - 460 .0008 .0008 .0008 .0008 .0008 .0008 .0012 .0012 .0012
Synthetics, Duroplastics, 160 - 650 .0016 .0020 .0016 .0020 .0020 .0024 .0024 .0024 .0024
Thermoplastics
Nickel Alloys, Titanium Alloys and
S 65 - 130 .0008 .0012 .0012 .0016 .0020 .0020 .0024 .0024 .0024
High Temp. Alloys
Hardened Steels 45-50 HRc 190 - 230 .0008 .0008 .0008 .0012 .0016 .0016 .0020 .0020 .0020
H
Hardened Steels 50-55 HRc 160 - 190 .0004 .0004 .0004 .0008 .0012 .0012 .0016 .0016 .0016
B12-20