20-40mm Three Point Internal Micrometer set

The three point internal micrometer set has a measuring range of 20mm to 40mm. The set consists of four micrometers and two setting rings that can be used to calibrate all micrometers within the set. The set comes complete in a heavy duty storage case.

The Micrometers have carbide-tipped contact points, and are designed to allow measurements to be taken close to the bottom of a blind bore. The easy to read scale and ratchet stop ensure consistent measurement.

Included with the internal micrometer set: 4 Micrometers, 2 Setting rings, Adjusting spanners and Storage case.