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 you receive a tailored reamer

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

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

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

Reuse-friendly design: The bore can be adjusted as your parts change

accurate contours with a reliable surface finish

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 you receive a tailored reamerThe 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