JBO Thread Plug Gauge - UNC Go-No/Go - Left Hand - 2B - No. 8 x 32 M&D helping you reach consistent hole

helping you reach consistent hole sizes and minimize finishing steps in production runs

Material & Finish: HSS with a bright finish

Rugged Hardened Steel Construction: Built to endure daily use

reliable checks to ensure mating parts fit correctly

repeatable toolholding in everyday machining

JBO Thread Plug Gauge - UNC Go-No/Go - Left Hand - 2B - No. 8 x 32 M&D helping you reach consistent holeMeet the JBO Thread Plug Gauge a precision inspection tool engineered to verify internal threads quickly and reliably. This gauge is specifically calibrated for left hand Unified National Coarse (UNC) threads in the No. 8 x 32 size and 2B tolerance class, helping technicians confirm hole readiness before assembly or repair. Its go no go design delivers instant pass fail feedback, reducing inspection time and minimizing guesswork on threaded holes.