Due to high demand and worldwide supply chain issues, we are experiencing longer than normal delivery time frames for many Tormach machines and accessories.


To set length units to inches, program: G20

To set length units to millimeters, program: G21

Tip! Program either G20 or G21 near the beginning of a program, before any motion occurs. Avoid using either one anywhere else in the program. It’s your responsibility to make sure that all numbers are appropriate for use with the current length units.