JBO Thread Plug Gauge - Metric Coarse Go/No-Go - Left Hand - 5H - M1 x 0.25 S&E tight-radius work

tight-radius work

5 Micron Run-Out Precision: Delivers superior concentricity and tight tolerances

Why the ER32 Collet Standard Precision stands out

straight shank is built for rigidity and accurate alignment in small or constrained bores

Durable HSS-E (M35 Cob) composition: The cobalt-enhanced high-speed steel delivers improved wear resistance and longer tool life

JBO Thread Plug Gauge - Metric Coarse Go/No-Go - Left Hand - 5H - M1 x 0.25 S&E tight-radius workThe JBO Thread Plug Gauge is a precision tool designed for metric coarse threads. It's ideal for machinists, quality teams, and workshop professionals who need fast, reliable checks of threaded holes. With a compact, rugged design and a clear go no go framework, it helps confirm the correct hole size for M1 x 0. 25 coarse threads right away. Built to endure daily use, the gauge uses hardened steel for long lasting accuracy. The left hand orientation