JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 4H - M8 x 0.5 RPTECH improving fit and reducing post-machining

improving fit and reducing post-machining finishing steps

Through-Coolant for Cleaner Cuts: Integrated coolant passage channels chips out of the hole and helps maintain a cooler cutting zone

resulting in a cleaner cut and longer tool life even on tougher metals

Ultra-low run-out — 10 μm accuracy: Delivers exceptional concentricity

helping maintain bore size over many cycles and across different materials

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 4H - M8 x 0.5 RPTECH improving fit and reducing post-machiningThe JBO Thread Plug Gauge is a purpose built tool for checking metric fine threaded holes, specifically sized for M8 x 0. 5 threads in the 4H class. With its Go No Go design, it provides a fast, clear yes or no check on whether a hole is within tolerance, helping parts assemble correctly the first time. This right hand gauge is ideal for engineers, inspectors, machinists, and maintenance teams who need reliable thread verification without slow,