Medium Golden Mean Calipers

Medium Golden Mean Calipers : 180mm / 7.2 inches long

They measure distances from 35mm-320mm or 1.5 – 12.8 inches

The medium calipers are the most versatile size – and are used both by artists, teachers and the medical profession.

There is also a special heavy-duty version (2mm thick steel) which are used by farriers to measure ideal horse-shoe sizes… if you’d prefer heavy-duty ones, let me know.

This design is the original… first created about 14 years ago on ponoko.com.