VCOIL Plug Gauge (NoGo) - UN (STI) - Heli Coil Gauge - Right Hand - 3B - 1.7/8 x 8 Die & Mould Collet Chucks ensuring compatibility with standard toolholders

ensuring compatibility with standard toolholders and demanding bore requirements

rigid taper fit

accurate threads whether you’re assembling or disassembling parts

Drill the correct pilot hole per M8x1 specifications before tapping to minimize the chance of cross-threading or broken taps

ensuring you receive exactly what you need for your project

VCOIL Plug Gauge (NoGo) - UN (STI) - Heli Coil Gauge - Right Hand - 3B - 1.7/8 x 8 Die & Mould Collet Chucks ensuring compatibility with standard toolholdersThe VCOIL Plug Gauge (NoGo) is a precision Go No Go thread gauge designed for UN (STI) right hand Helicoil applications. It combines fast, accurate checking of both go and no go conditions in a single tool sized for 3B class threads (17 8 x 8). Gauge Type: Go No Go thread limit plug gauge for UN (STI) right hand Helicoil threads, 3B class Standards Compliance: Manufactured and assessed to ANSI ASME thread system specifications Go End: Screws into the