JBO Thread Ring Gauge (GO) - UNS - Right Hand - 2A - 1/4 x 36 FMH FLH FHH S&E A&NF M&D It features a left-hand spiral

It features a left-hand spiral flute and right-hand cutting for controlled material removal and a clean

This gauge helps you streamline quality checks

Carbide stub-length construction: Delivers durable wear resistance and stable hole size for repeated use in tight tolerance reaming jobs

18 mm diameter is an intermediate precision taper‑shank tool made from M2 high‑speed steel

it is built to handle tougher materials while delivering reliable

JBO Thread Ring Gauge (GO) - UNS - Right Hand - 2A - 1/4 x 36 FMH FLH FHH S&E A&NF M&D It features a left-hand spiralThe JBO Thread Ring Gauge (GO) UNS Right Hand 2A 1 4 x 36 is a precision go gauge crafted to verify external thread diameters. Designed for engineers, inspectors, machinists, and buyers, it helps you quickly determine whether threaded components meet required standards, supporting reliable quality control across production runs. Manufactured from hardened steel, this ring gauge offers durable, long lasting performance in demanding work environments.