JBO Thread Plug Gauge - UNC Go-No/Go - Left Hand - 2B - 1/2 x 13 Tapping Chucks The corner radius helps preserve

The corner radius helps preserve workpiece integrity by reducing edge chipping

allowing you to tailor tool reach and engagement to your specific machining needs

Durable Carbide for Extended Tool Life: Hard carbide resist wear for longer tool life and fewer tool changes in repetitive rib-cutting work

Taper shank design for secure mounting and alignment: Provides reliable rigidity and accurate alignment in compatible machines and collets

89 mm size combines spiral flute geometry with a straight shank to deliver reliable hole finishing in a wide range of metals

JBO Thread Plug Gauge - UNC Go-No/Go - Left Hand - 2B - 1/2 x 13 Tapping Chucks The corner radius helps preserveThe JBO Thread Plug Gauge is a precision Go No Go gauge designed to quickly and reliably inspect left hand UNC threads. Sized for 1 2 x 13 with a 2B tolerance, it helps verify threaded holes meet Unified thread standards in demanding industries like manufacturing, automotive, and aerospace. Its dual ended design makes GO and NO GO checks fast and straightforward, reducing guesswork during quality control. Go No Go quick checks: Instantly identify