JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 6H - M38 x 2 G It features a left-hand spiral

It features a left-hand spiral flute and right-hand cutting to finish holes with tight size control at 34

02 mm final size for accurate hole enlargement

Key specs include 1 mm x 6 mm x R0

Designed for reliability and compatibility

and reliable performance on mold and die projects with materials such as pre-hardened steel

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 6H - M38 x 2 G It features a left-hand spiralThe JBO Thread Plug Gauge is a precision inspection tool designed for metric fine threads. Its the reliable choice for machinists, engineers, buyers, tradespeople, hobbyists, and technicians who need fast, accurate checks of threaded holes to ensure perfect mating with screws and inserts. Built for internal thread verification, this Go No Go gauge uses a clear, decisive design to confirm whether a hole meets specification at a glance, reducing