JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 4h - M56 x 1 End Mill Holders while durable HSS-E construction supports

while durable HSS-E construction supports consistent results across materials

60–62 HRC hardened steel for long tool life: The material’s hardness delivers excellent wear resistance and edge retention

The Toolex HSS-E Piloted Counterbore with a 180° cutting edge is a precision tooling solution designed to create clean

predictable cutting and clean finishes in metalworking projects

and serious hobbyists working with precision bores

JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 4h - M56 x 1 End Mill Holders while durable HSS-E construction supportsThe JBO Thread Ring Gauge (GO) Metric Fine Right Hand 4h M56 x 1 is a precision tool designed for fast, reliable verification of external thread diameters. Its ideal for machinists, quality inspectors, and assembly teams working with metric fine threads, helping you confirm that parts conform to your required standards. Crafted from hardened steel, this GO ring gauge delivers durability and wear resistance for rigorous, daily use in busy workshops.