Page 300 - Carmex - Inch Catalog 2018-19 Rev. B
P. 300
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Mill - Thread Technical Section
Spiral Finish Speed and Feed Selection
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 Speed
ISO Materials
(ft/min)
Low and Medium Carbon Steels 660 - 1080
P High Carbon Steels 560 - 770
Alloy Steels, Treated Steels 330 - 640
Stainless Steels 590 - 755
M
Cast Steels 590 - 755
K Cast Iron 660 - 1150
Non-Ferrous & Aluminum 1640 - 3610
N
Synthetics, Duroplastics, Thermoplastics 1310 - 4920
S Nickel Alloys, Titanium Alloys 100 - 180
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