Collection: Telescopic Gauges

Telescopic Gauges – Accurate Bore Measurement Made Simple
Explore our Telescopic Gauges Collection, designed for fast and reliable internal diameter measurement of bores, slots, and recesses. Used in conjunction with micrometers, these gauges provide an efficient and highly repeatable method for measuring internal features in machine parts, castings, and tooling.

Trusted by Machinists and Inspectors Worldwide
Telescopic gauges use spring-loaded plungers that lock into place at the widest point of a bore, allowing for accurate transfer of internal dimensions to an external micrometer. Compact, rugged, and easy to use, they are an essential tool in any machinist's or inspector’s measurement kit.