JBO Thread Plug Gauge (GO) - Metric Fine - Right Hand - 6H - M45 x 2 S&E delivering consistent results in milling

delivering consistent results in milling

and a precise fit translates into smoother surface finishes

The combination of a left-hand spiral flute with right-hand cutting supports reliable penetration and smooth bore finish

helping maintain hole size across multiple uses in demanding metals

and efficient chip management supports higher first-pass success

JBO Thread Plug Gauge (GO) - Metric Fine - Right Hand - 6H - M45 x 2 S&E delivering consistent results in millingThe JBO Thread Plug Gauge (GO) Metric Fine is a precision inspection tool designed to verify threaded holes in metal parts and assemblies. Its a reliable choice for machinists, quality control teams, shop technicians, and hobbyists who need fast, confident go no go checks to confirm holes meet exact size and pitch requirements. This GO gauge is configured for metric fine threads and corresponds to M45 x 2 with a 6H tolerance in a right hand