JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 6G - M34 x 1 ER Collet Chucks and hardened-material capability means fewer

and hardened-material capability means fewer tool changes

narrower neck increases rigidity and stability

controlled cutting action for consistent finishing

It’s manufactured to BS 328/4 standards with an ISO H5 tolerance on a 13

aligned with DIN 212 B-style tolerances (ISO H5)

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 6G - M34 x 1 ER Collet Chucks and hardened-material capability means fewerThe JBO Thread Plug Gauge is a precision Go No Go tool designed to quickly verify internal metric fine threads. It's ideal for engineers, machinists, inspectors, and assembly teams who need fast, accurate checks to ensure parts thread together cleanly. Sized for right hand metric fine threads, including M34 x 1, and built to a 6G specification, this gauge delivers consistent results in demanding environments. It features hardened steel construction