Tool category

Machining tools

Reference tools for common workshop machining operations.

6 tools

Available calculators

Find tapping drills for metric, UNC and UNF threads.

Calculate machining RPM, feed rate, surface speed and chip load.

Match metric, fractional, number and letter drill sizes.

Convert metric thread pitch, TPI and reciprocal pitch values.

Calculate countersink depth from hole diameters and included angle.

Calculate taper angle, length and diameter change per unit length.

Convert the thread callout, select a tapping drill and match available drill sizes.

Check spindle and feed settings alongside countersink or taper geometry.