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Mill-Thread Technical Section
Spiral Mill-Thread Inserts Speed and Feed Selection 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. MT7
Cutting Speed m/min MT7
ISO
Materials
Low and Medium Carbon Steels
145 - 360 165 - 255 135 - 230 165 - 245 190 - 245 100 - 220 230 - 440 145 - 590 30 - 115
P
High Carbon Steels
Alloy Steels, Treated Steels
Stainless Steels
M K N S
Cast Steels
Cast Iron
Non-Ferrous & Aluminum
Synthetics, Duroplastics, Thermoplastics
Nickel Alloys, Titanium Alloys
As you may note, cutting speed is shown in range terms. In most standard cases choosing a speed in the middle of the range would be a good choice for a start. For hard metals reduce cutting speed. Recommended FEED RATE: 0.05 - 0.15 mm
Spiral Finish Speed Selection
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. MT7
Cutting Speed (m/min) MT7
ISO
Materials
Low and Medium Carbon Steels
200 - 330 170 - 235 100 - 195 180 - 230 180 - 230 200 - 350 500 - 1100 400 - 1500 30 - 55
P
High Carbon Steels
Alloy Steels, Treated Steels
Stainless Steels
M K N S
Cast Steels
Cast Iron
Non-Ferrous and Aluminum
Synthetics, Duroplastics, Thermoplastics
Nickel Alloys, Titanium Alloys
B12-7
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