VCOIL Plug Gauge (NoGo) - UN (STI) - Heli Coil Gauge - Right Hand - 2B - 1.3/4 x 8 FHH while the 6 mm shank

while the 6 mm shank fits a wide array of milling machines

3‑Flute design with 45° helix: The 3-flute geometry and 45° helix provide improved chip evacuation and reduced cutting forces

91 mm) is a precision carbide-tipped reamer designed to bring holes to tight DIN 8051 H5 tolerances

it delivers lower friction and better chip evacuation

The four-flute design enhances chip evacuation

VCOIL Plug Gauge (NoGo) - UN (STI) - Heli Coil Gauge - Right Hand - 2B - 1.3/4 x 8 FHH while the 6 mm shankThe VCOIL Plug Gauge (NoGo) is a precision thread limit gauge designed for UN (STI) helicoil applications. It combines Go and No Go checks into one compact tool, helping you verify threaded holes quickly and reliably. Type: Thread limit plug gauge (Go No Go) for UN (STI) helicoil threads End designation: Scrap side marked with a red index ring for instant identification Standards: Manufactured and assessed to ANSI ASME thread system specifications Go