
CNC Machinist: Speeds & Feeds
Milling, Turning & Drilling
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Free
With Ads
About
Professional CNC calculator for machinists, programmers and makers. Calculate spindle RPM, feed rate, chip load, tap drill sizes, threads, surface finish and tool life.
What's New in CNC Machinist
2.5.14
August 21, 2026
New CNC machining calculations, improved multilingual support, and a smoother experience.





