VCOIL Plug Gauge (NoGo) - UN (STI) - Heli Coil Gauge - Right Hand - 2B - 2 x 8 FMH FLH FHH S&E A&NF M&D Left-Hand Spiral Flute with Right-Hand

Left-Hand Spiral Flute with Right-Hand Cutting: Enables efficient chip removal and controlled cutting direction

delivering tight hole size control essential for accurate fits and assemblies

The M2 high-speed steel combined with a left-hand spiral flute supports efficient chip removal and stable cutting

accurate hole diameters that match standard precision reaming references for reliable results across jobs

VCOIL Plug Gauge (NoGo) - UN (STI) - Heli Coil Gauge - Right Hand - 2B - 2 x 8 FMH FLH FHH S&E A&NF M&D Left-Hand Spiral Flute with Right-HandThe VCOIL Plug Gauge (NoGo) is a precision go no go gauge for UN (STI) right hand helicoil threads, designed for machinists and inspectors who need ANSI ASME compliant thread verification. Thread system: UN (STI) right hand threads to align with helicoil insert specifications Go No Go design: Combined go plug gauge and no go plug gauge for quick acceptance and rejection testing Standards: Manufactured and assessed in accordance with ANSI ASME thread