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 Taper shank in BS 328/4

Taper shank in BS 328/4 specification: Fits standard tool holders and maintains stable alignment for accurate reaming

accurate contours with a reliable surface finish

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

you receive a tailored reamer that meets exacting size and tolerance requirements

accurate ball nose and a robust cutting edge makes it ideal for mold and die applications where detail matters and consistency counts

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 Taper shank in BS 328/4The 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