These quality instruments provide accurate reading of the depth of bores up to 200mm (8") deep.

The indicator range of 10mm (0.5") and resolution of 0.01mm (0.001") is ample for most applications.

A range of extension rods is provided to reach the deeper bores and the set is packaged in a wooden case that can be kept at the inspection point.

The base is ground flat for accurate placement and measures 80 mm x 12 mm.