The cylindrical blocks are mounted on the shaft and anvil of the outdoor micrometers. The three-wire measuring system is used to determine the average diameter of threads by mathematical calculation, or by means of special tables, and is one of the most precise measuring methods. This method is also suitable for checking threaded plug gauges.

Wires: precision hardened

Diameter tolerance: ± 1 μm

Connection diameter: 6,50 mm

The wires are mounted on a support suitable for micrometers with measuring rod Ø 6,5 mm. Supplied in pairs or in assortment, with tables included