VCOIL Plug Gauge (NoGo) - UN (STI) - Heli Coil Gauge - Right Hand - 3B - 1.3/8 x 8 M&D 10 micron accuracy: Ensures repeatable

10 micron accuracy: Ensures repeatable

With a straight shank for easy mounting in common collets and holders

it delivers consistent performance and longer life between re-sharpening

left-hand configuration: The metric sizing and left-hand orientation expand compatibility for internal threading in diverse workholding setups

The precise design and reliable clamping keep cutters aligned under heavy loads

VCOIL Plug Gauge (NoGo) - UN (STI) - Heli Coil Gauge - Right Hand - 3B - 1.3/8 x 8 M&D 10 micron accuracy: Ensures repeatableThe VCOIL Plug Gauge (NoGo) is a precision, dual function thread gauge designed for UN (STI) right hand threads used in Helicoil insert applications. It combines Go and No Go checks in a single tool to quickly verify thread cuts against ANSI ASME standards. Thread standard: UN (STI) right hand threads, aligned with ANSI ASME thread systems. Go No Go design: Includes a Go end for hand screw verification and a No Go end for scrap limit testing; the