JBO Thread Plug Gauge - Metric Coarse Go/No-Go - Right Hand - 4H - M1.6 x 0.35 ER Collet Chucks It’s a practical choice for

It’s a practical choice for professional shops

while the long shank supports deep cavities and hard-to-reach features

especially where sloped surfaces and complex geometries come into play

and workshops that need reliable hole size control and consistent finishes

With an 18 mm diameter and a regular-length body

JBO Thread Plug Gauge - Metric Coarse Go/No-Go - Right Hand - 4H - M1.6 x 0.35 ER Collet Chucks It’s a practical choice forThe JBO Thread Plug Gauge is a precision inspection tool designed for metric coarse threads. This right hand gauge checks internal threads for M1. 6 x 0. 35 coarse pitch, helping you verify that threaded holes will accept components with the correct fit. Built for busy workshops, the gauge features a durable hardened steel body with an ergonomic knurled grip for confident handling. Its go no go design delivers fast, unmistakable pass fail checks, so