JBO Thread Plug Gauge - Metric Fine Go/No-Go - Left Hand - 6H - M19 x 1 G and similar materials

and similar materials

and precise tolerances translates into faster setups

Benefits: This combination delivers precise hole finishing with durable wear resistance from cobalt-enhanced steel

helping you achieve accurate geometries without extra finishing steps

66mm is a precision stub reamer designed to finish holes to ISO H4 tolerance

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Left Hand - 6H - M19 x 1 G and similar materialsThe JBO Thread Plug Gauge is a left hand, metric fine thread Go No Go gauge designed to verify internal threads with speed and precision. Sized for M19 x 1 holes in the 6H class, it helps ensure mating parts fit accurately without guesswork in critical assemblies. Built for daily workshop use, this gauge features hardened steel construction and a textured grip, delivering long lasting performance and confident handling during inspections. Go No Go