JBO Thread Plug Gauge - UNC Go-No/Go - Left Hand - 2B - 9/16 x 12 ER Collet Chucks 13mm is a straight-shank carbide

13mm is a straight-shank carbide reamer designed for precise hole finishing in a wide range of metals

5 Micron Run-Out: Minimizes run-out at the tool tip to improve cut quality

clear pass/fail results to speed up inspections and reduce guesswork

2 mm radius) for precise fillets and sharp corners

improved cutting efficiency thanks to effective chip clearance

JBO Thread Plug Gauge - UNC Go-No/Go - Left Hand - 2B - 9/16 x 12 ER Collet Chucks 13mm is a straight-shank carbideJBO Thread Plug Gauge UNC Go No Go Left Hand 2B 9 16 x 12 is a precision gauge used to verify internal threads to Unified standards in manufacturing, automotive, and aerospace environments. Its go no go design delivers fast pass fail feedback for right fit, reliable assemblies. Go No Go Quick Conformity Check: The dual ended design lets you quickly confirm thread hole acceptanceif the go end threads in smoothly and the no go end does not, the hole is