JBO Thread Plug Gauge - Metric Fine Go/No-Go - Left Hand - 6H - M12 x 0.5 Face Mill Arbors repeatable hole finishing in professional

repeatable hole finishing in professional workshops

while the H5 tolerance guarantees tight bore control across parts

repeatable results across various materials and applications

helping screws sit flush with the surface

smooth surfaces and repeatable results on HRc70 alloys

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Left Hand - 6H - M12 x 0.5 Face Mill Arbors repeatable hole finishing in professionalThe 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,