JBO Thread Plug Gauge - UNF Go-No/Go - Right Hand - 2B - 1 3/8 x 12 FMH FLH FHH S&E A&NF M&D Precise NoGo verification for quick

Precise NoGo verification for quick quality control: Quickly determine whether an external thread is out of tolerance

helping the reamer maintain size and finish over more holes between sharpenings

Left-hand spiral flute with right-hand cutting: Optimizes chip evacuation and cutting action for a cleaner bore and smoother surface finish

this reamer combines the hardness and wear resistance of HSS-E with the protective AcuRea coating

66 mm reamer uses M2 high-speed steel and a spiral flute for smooth

JBO Thread Plug Gauge - UNF Go-No/Go - Right Hand - 2B - 1 3/8 x 12 FMH FLH FHH S&E A&NF M&D Precise NoGo verification for quickThe JBO UNF Thread Plug Gauge is a precision inspection tool designed to verify internal threads to UNF standards. Built for professionals across manufacturing, automotive, and aerospace, it helps quality teams quickly assess threaded holes and confirm conformance to the 1 3 8 x 12 UNF right hand specification. Go No Go quick conformance check: The dual ends provide an immediate pass fail indication, speeding inspections and reducing guesswork in high