JBO Thread Plug Gauge - Metric Coarse Go/No-Go - Right Hand - 4H - M2 x 0.4 FMH 3 to produce smooth internal

3 to produce smooth internal corners and improved edge life

deliver consistent results

it’s a dependable choice when you need a finish-ready bore in steel

The combination of M2 HSS material and ISO H5 tolerance supports durable performance and repeatable results in manual reaming applications

while the 4-flute geometry supports efficient chip evacuation and steady finishes

JBO Thread Plug Gauge - Metric Coarse Go/No-Go - Right Hand - 4H - M2 x 0.4 FMH 3 to produce smooth internalThe JBO Thread Plug Gauge is a precision inspection tool designed for metric coarse threads. This right hand, go no go gauge checks threaded holes for M2 x 0. 4 specifications, delivering a quick, definitive pass fail that keeps production moving and assemblies accurate. Built to withstand the demands of busy shops, the gauge is made from hardened steel for durability and long service life. Its an essential instrument for quality control, machining,