Simple shop-floor tools for milling, turning, drilling, metal removal rate, power estimate, and practical tap drill sizes.
Choose milling, turning or drilling. The calculator changes the inputs and notes to match the job.
Starting point only. Final cutting data depends on material grade, tool grade, stick-out, coolant, workholding, machine condition and tool maker data.
Metric and imperial threads with practical drill suggestions you can actually buy.
Form tap drills vary by tap brand, material and required thread percentage. For production work, confirm with the tap manufacturer's chart.
Bar and sheet nesting checks for quoting and cutting.
Coming soonEstimate weight for aluminium, steel, brass and engineering plastics.
Coming soonPlain-English guides for G81, G83, G84 and canned cycles.
Coming soon