JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 6G - M34 x 1 ER Collet Chucks It’s manufactured to BS 328/4

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

Fine Pitch

and hardened-material capability means fewer tool changes

Its robust construction and premium clamping design minimize tool slip

intermediate-precision tool designed to finish holes with tight and repeatable accuracy

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 6G - M34 x 1 ER Collet Chucks It’s manufactured to BS 328/4The 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