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

It combines a premium carbide substrate with a durable W coating to extend tool life and stabilize cutting under demanding conditions

it provides repeatable seating and minimal runout to help you achieve consistent cutting performance with a wide range of tooling

and a long shank makes it well-suited for intricate contouring

5 mm with a reach of 4 mm and a corner radius of R0

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