JBO Thread Plug Gauge - Metric Fine Go/No-Go - Left Hand - 6H - M12 x 1.5 Widin New Designed for ER25 tool holders

Designed for ER25 tool holders

or features in tough metals

Built for machinists seeking dependable HSS tooling with strict tolerance and DIN-standard geometry

it helps you achieve consistent hole finishes

Using the GO gauge as part of your quality control routine helps ensure threaded connections assemble reliably

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Left Hand - 6H - M12 x 1.5 Widin New Designed for ER25 tool holdersJBO Thread Plug Gauge Metric Fine Go No Go Left Hand 6H M12 x 1. 5 is a precision inspection tool designed to verify the quality of internal threads in metric fine hole sizes. Built for engineers, machinists, quality control teams, and maintenance professionals, this gauge helps you quickly confirm whether a threaded hole matches the M12 x 1. 5 left hand specification, enabling reliable assembly and reducing misfits during production or repair. Go No