JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 4H - M1.8 x 0.2 Hex Key Drill Chuck It adheres to DIN 8051

It adheres to DIN 8051 B with a tolerance of D = ISO H5

and serious hobbyists who value accuracy and durability

1 mm corner radius makes it ideal for mold and die work

Whether you’re creating gear slots

and technicians who need predictable

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 4H - M1.8 x 0.2 Hex Key Drill Chuck It adheres to DIN 8051The JBO Thread Plug Gauge is a precision inspection tool designed for metric fine threads. Whether youre in a machine shop, quality lab, or maintenance facility, it helps you verify that internal threads are within spec before assembly. Built for reliability, this gauge targets M1. 8 x 0. 2 right hand threads with 4H tolerance, using a Go No Go design so you can quickly confirm both fit and clearance in a single check. The hardened steel construction