Page 385 - Carmex - Inch Catalog 2022
P. 385
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Mill-Thread Technical Section
Mill-Thread Inserts 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 ft/min
ISO Materials
MT7
Low and Medium Carbon Steels 380 - 920
P High Carbon Steels 430 - 660
Alloy Steels, Treated Steels 340 - 590
Stainless Steels 430 - 620
M
Cast Steels 490 - 620
K Cast Iron 260 - 560
Non-Ferrous & Aluminum 590 - 1120
N
Synthetics, Duroplastics, Thermoplastics 380 - 1500
S Nickel Alloys, Titanium Alloys 80 - 300
Recommended FEED RATE: .002 - .006
B12-5
