JBO Thread Plug Gauge - UNJC Go-No/Go - Right Hand - 3B - 7/16 x 14 ER Collet Chucks 60mm is an intermediate precision

60mm is an intermediate precision carbide (k10) stub reamer designed to finish holes to tight tolerances with reliability

high-quality bore finishes across a range of metals

Geared for professionals across manufacturing

precisely sized through-holes

and assembly teams quickly confirm that threaded parts meet exact standards and will mate correctly in assemblies

JBO Thread Plug Gauge - UNJC Go-No/Go - Right Hand - 3B - 7/16 x 14 ER Collet Chucks 60mm is an intermediate precisionIntroducing the JBO Thread Plug Gauge, a precision tool for rapid verification of internal UNJC threads. Sized for right hand threads at 7 16 x 14 with a 3B tolerance, this go no go gauge is a reliable choice for technicians, inspectors, and machinists across manufacturing, automotive, and aerospace applications. Designed to deliver consistent, accurate checks on threaded holes, it helps ensure components meet Unified standards before assembly. Go No