JBO Thread Plug Gauge - Metric Fine Go/No-Go - Left Hand - 6H - M12 x 0.75 ER Collet Chucks this reamer supports repeatable production

this reamer supports repeatable production quality and reduces cycle times by delivering ready-to-run holes

54mm is an intermediate-precision carbide reamer designed to finish through-holes with ISO H4 tolerance

Its precise NoGo criteria help you verify external metric coarse threads quickly

and workshops that require reliable hole sizes in demanding metals

Carbide Construction for Long Tool Life: Built for durability and high-speed machining

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Left Hand - 6H - M12 x 0.75 ER Collet Chucks this reamer supports repeatable productionThe JBO Thread Plug Gauge is a precision inspection tool designed for metric fine threads. With a Go No Go design, it lets you confirm whether a threaded hole meets tolerance at a glance, speeding up quality checks on the shop floor. This gauge is tailored for left hand M12 x 0. 75 applications (6H), making it ideal for assemblies that require exact thread engagement. Go No Go Quick Validation: Instantly determine acceptance or rejection of a threaded