JBO Thread Plug Gauge - Metric Coarse Go/No-Go - Left Hand - 6H - M8 x 1.25 ER Mini Collet Chucks 5 precision concentricity: Ensures tight

5 precision concentricity: Ensures tight runout control for consistent

supporting efficient setups and reliable performance from first pass to final finish

ensuring consistent hole size from job to job

Designed for shops that demand consistent

JBO Thread Plug Gauge - Metric Coarse Go/No-Go - Left Hand - 6H - M8 x 1.25 ER Mini Collet Chucks 5 precision concentricity: Ensures tightThe JBO Thread Plug Gauge is a precision go no go gauge designed for metric coarse threads. This left hand variant is calibrated for M8 x 1. 25 holes, making it ideal for inspection workflows that demand quick, reliable checks of thread fit and hole size. With a simple pass fail test, you can confirm whether a threaded hole accepts a mating part without over or under tapping. Built for daily shop use, the gauge is machined from hardened steel to