JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 6H - M20 x 2 FMH 4h tolerance

4h tolerance

Because these tools are made-to-order

High-Hardness Carbide Edge: Delivers improved wear resistance and longer tool life

delivering stable alignment and consistent reaming performance across jobs and production runs

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JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 6H - M20 x 2 FMH 4h toleranceThe JBO Thread Plug Gauge is a precision tool designed for metric fine threads, specifically engineered for M20 x 2 with a 6H internal thread tolerance. Built for a right hand thread, it provides a fast Go No Go check to verify threaded holes, helping you confirm fit and function at a glance. Ideal for machinists, quality control professionals, and maintenance technicians, this gauge streamlines acceptance testing in workshops, production lines, and