JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 4H - M16 x 1 G Flute orientation: Left-hand spiral flute

Flute orientation: Left-hand spiral flute to optimize chip evacuation

straight cuts

Hardened steel construction: Built to resist wear and maintain accuracy through heavy use in busy inspection environments

reducing stress concentration and improving finishing quality

Finish: Uncoated surface to minimize friction and support smooth chip flow

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 4H - M16 x 1 G Flute orientation: Left-hand spiral fluteThe JBO Thread Plug Gauge is a precision tool designed for metric fine thread inspection. It helps engineers, machinists, and quality teams verify threaded holes quickly and accurately for reliable assembly with M16 x 1 components. With a Go No Go design and right hand orientation, this gauge supports fast, repeatable checks in busy shops. Its hardened steel construction delivers long lasting wear resistance in demanding environments. Go No Go Quick