8.6
This is a Thread calculator for machinist and industrial engineers alike
This is a calculator for machinist and industrial engineers alike. The functions included in this calculator are:
Thread Calculations*
Mill Tapping Feed rate
Lathe Threading Feed rate(Thread Lead)
Tap Drill Size
Percent of Full Thread
Mill Tapping Feed rate(Metric)
Tap Drill Size(Metric)
Percent of Full Thread (Metric)
January 22, 2026
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