JBO Thread Ring Gauge (GO) - UNC - Right Hand - 2A - 1/4 x 20 Hex Key Drill Chuck providing reliable performance in everyday

providing reliable performance in everyday manufacturing and precision engineering tasks

Carbide cutting edges maintain their sharpness longer

delivering a clear pass/fail result to speed up inspections and prevent mismatches

Standard Length is a precision M2 high-speed steel reamer designed for accurate hole sizing in metalworking projects

accurate holes with minimal risk of chip buildup or chatter

JBO Thread Ring Gauge (GO) - UNC - Right Hand - 2A - 1/4 x 20 Hex Key Drill Chuck providing reliable performance in everydayThe JBO Thread Ring Gauge (GO) for UNC Right Hand 2A 1 4 x 20 is a precision GO gauge designed to verify the external thread diameter of fasteners, fittings, and threaded components. Built for inspectors, machinists, and quality teams, it helps confirm parts conform to Unified UNC standards with reliable, repeatable results. Manufactured from hardened steel, this gauge delivers durable wear resistance for demanding workshops and long service life. Its