Mitutoyo Telescoping Gauge Set, 5/16 – 6″ Range, 6 piece

For quick checking of inside measurements. Plungers expand in hole to be measured, locked in place and gauge is removed from hole. Final hole size is obtained by measuring over contacts with a micrometer. Contact point ends are of hardened tool steel and precision around on a radius. Rigid handle with self-centring feature. Satin chrome finish. Constant spring tension for uniform feel. Double action (self centring). Supplied in a vinyl case.