JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 4H - M16 x 1.5 Die & Mould Collet Chucks helping you maintain tight tolerances

helping you maintain tight tolerances in production

accurate internal corners

and shop floor crews who need tight hole sizes and a smooth bore finish

Pair with compatible ER40 chucks and adapters to maintain alignment across setups and workflows

inventory needs

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 4H - M16 x 1.5 Die & Mould Collet Chucks helping you maintain tight tolerancesThe JBO Thread Plug Gauge is a precision tool designed for metric fine threads, ideal for engineers, machinists, quality teams, and maintenance professionals who need quick, reliable hole inspection. Configured for 4H hole tolerances and a right hand M16 x 1. 5 thread, this Go No Go gauge delivers straightforward pass fail checks to ensure parts fit together accurately. Go No Go Quick Checks: rapidly verify hole size and thread quality with a simple