JBO Thread Plug Gauge - Metric Coarse Go/No-Go - Right Hand - 6H - M8 x 1.25 RPTECH this reamer uses intermediate precision

this reamer uses intermediate precision carbide (K10) for stable performance

concentric gripping that minimizes tool wobble and enhances surface finish

It’s available in a cutting diameter range of 1

it fits standard toolholders and delivers repeatable results in production or workshop environments

ISO H5 tolerance (D) supports tight size control for accurate assemblies

JBO Thread Plug Gauge - Metric Coarse Go/No-Go - Right Hand - 6H - M8 x 1.25 RPTECH this reamer uses intermediate precisionThe JBO Thread Plug Gauge is a right hand, go no go gauge designed to verify internal metric coarse threads, specifically M8 x 1. 25, with a 6H tolerance. It delivers quick, reliable checks to ensure threaded holes accept fasteners as intended and assemblies fit properly. Built for everyday use in workshops, production lines, and quality control labs, this gauge helps teams confirm thread integrity with confidence. Made from hardened steel, this gauge