Sets include a dial caliper, a micrometer, a ruler, and a case. The micrometer has a friction thimble with a constant-force mechanism, so that once the spindle contacts the surface of the measured object, it will stop tightening. This ensures repeatable measurements and prevents over-tightening. Once the spindle stops tightening, the thimble will continue turning with resistance.

Replacement cases cannot be sold to Canada due to import regulations.