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while the H5 tolerance guarantees tight bore control across parts
A straight shank ensures reliable seating and straightforward setup in standard drilling and boring machines
Its robust geometry supports repeatable results
Built from premium materials and finished with a durable W coating
enabling accurate reproduction of complex curves and improved surface finish
JBO Thread Plug Gauge - Metric Fine Go/No-Go - Left Hand - 6H - M12 x 0.5 Face Mill Arbors while the H5 tolerance guaranteesThe JBO Thread Plug Gauge is a left hand, metric fine thread Go No Go gauge designed for precise inspection of threaded holesspecifically M12 x 0. 5 with 6H tolerance. It helps engineering teams, machine shops, and maintenance crews quickly confirm that holes will accept mating parts without guesswork, boosting first pass quality in every run. Go No Go quick checks: A simple pass fail test for threaded holes lets you verify acceptance in seconds,
