JBO Thread Plug Gauge - Metric Fine Go/No-Go - Left Hand - 6H - M40 x 2 Power Milling Chucks helping reduce chip clogging and

helping reduce chip clogging and improve overall efficiency

and streamline production workflows across batches of metric coarse threaded components

DIN 206-B compliance with ISO H5 tolerance: Precise final bore size and repeatable results that align with standard measuring practices and tooling families

Size and fit for compatible tooling: 18

This end mill holder is built to boost your workflow by delivering dependable clamping

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Left Hand - 6H - M40 x 2 Power Milling Chucks helping reduce chip clogging andThe JBO Thread Plug Gauge is a precision tool designed for metric fine threads, helping you verify threaded holes quickly and confidently. Built for engineers, machinists, quality inspectors, and shop environments, this left hand Go No Go gauge checks tolerance for M40 x 2 threads (6H) so parts mate smoothly on first assembly. Constructed from hardened steel, the gauge delivers dependable performance and stands up to daily use in demanding workshop