Page 377 - Carmex - Metric Catalog 2021

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Mill-Thread Technical Section

Cutting Data

FMT - Fast MT type

MT8 Sub Micron grade with advanced PVD triple coating (ISO K10-K20).
Extremely high heat resistant and smooth cutting operation, for high performance and normal
machining conditions. General purpose for all materials.

Cutting Feed mm/tooth
ISO Cutting Diameter = D
Standard Materials Speed
m/min ø5 ø6 ø8 ø10 ø12
Low and Medium Carbon Steels < 0.55%C 100 - 250 0.03 0.06 0.07 0.08 0.09
P High Carbon Steels ≥ 0.55%C 110 - 180 0.03 0.05 0.06 0.07 0.08

Alloy Steels, Treated Steels 90 - 60 0.02 0.03 0.04 0.05 0.05
Stainless Steel - Free Cutting 60 - 160 0.03 0.04 0.05 0.06 0.06
M Stainless Steel - Austenitic 60 - 120 0.01 0.03 0.04 0.05 0.05
Cast Steels 130 - 170 0.02 0.03 0.04 0.05 0.05
K Cast Iron 70 - 150 0.04 0.06 0.07 0.08 0.09
Aluminum ≤ 12%Si, Copper 150 - 350 0.04 0.06 0.07 0.08 0.09
N Aluminum > 12%Si 100 - 250 0.03 0.03 0.04 0.05 0.05
Synthetics, Duroplastics, Thermoplastics 100 - 400 0.06 0.08 0.10 0.11 0.12
S Nickel Alloys, Titanium Alloys. 20 - 80 0.02 0.03 0.03 0.03 0.03
H Hardened Steel, 45-50HRc 60 - 70 0.02 0.03 0.03 0.03 0.03

B12-15