Speeds & Feeds for Thread Milling Cutters
Workpiece Material |
Speed SFM |
Feed Rate (Inches Per Tooth) |
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3/16" Dia. |
1/4" Dia. |
5/16" Dia. |
3/8" Dia. |
1/2" Dia. |
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ALUMINUM |
800-1400 |
.001-.0015 |
.0015-.0025 |
.002-.003 |
.003-.0045 |
.0035-.0055 |
BRASS |
600-800 |
.001-.0015 |
.0015-.0025 |
.002-.003 |
.003-.0045 |
.0035-.0045 |
BRONZE |
500-600 |
.001-.0015 |
.0015-.0025 |
.002-.003 |
.003-.0045 |
.0035-.0045 |
LOW ALLOY STEEL <25RC |
350-500 |
.001-.0015 |
.0015-.0025 |
.002-.003 |
.0025-.0035 |
.003-.004 |
HIGH ALLOY STEEL >25RC |
250-400 |
.0005-.001 |
.0008-.0015 |
.001-.002 |
.0015-.0025 |
.002-.003 |
STAINLESS |
150-250 |
.0006-.001 |
.001-.0015 |
.0015-.002 |
.0015-.0030 |
.002-.0035 |
TITANIUM |
80-150 |
.0005-.001 |
.0008-.0015 |
.001-.002 |
.0015-.0025 |
.0015-.0025 |