CNC Calc Machinist Lathe Mill

On the shop floor and need a quick answer? CNC Calculator covers thread pitch, tolerance fits, cutting speed, feed rate, taper, hole coordinates, and material weight—made for lathe and milling operators.

ISO thread tables, macro and groove program helpers, and everyday machining maths in one app. Save favourites, browse calculation history, and export or import your data. Fully offline—no sign-in, no cloud upload.

• Thread calc: metric & imperial pitch, tap drill
• Tolerance lookup: hole/shaft fit grades
• Speed & feed: surface speed, RPM, chip load
• Taper, chamfer, hole position, polygon
• Macro & groove program generation
• Weight, roughness, triangle & arc tools
• Favourites, history, data export/import

A dependable pocket reference for CNC machinists, toolmakers, and mechanical engineers.