VCOIL Plug Gauge (D/E) - UNF (STI) - Heli Coil Gauge - Right Hand - 2B - 1.1/4 x 12 G making it a reliable workhorse

making it a reliable workhorse for everyday fabrication

Wear-resistant carbide with durable W coating: Built to resist wear

This insert helps you achieve consistent

Used for finishing and enlarging small holes to precise sizes

The Toolex Reamer with Taper Shank and Spiral Flute finishes holes to ISO H5 tolerance on a 39

VCOIL Plug Gauge (D/E) - UNF (STI) - Heli Coil Gauge - Right Hand - 2B - 1.1/4 x 12 G making it a reliable workhorseThe VCOIL Plug Gauge is a precision go no go thread gauge designed for UNF (STI) threads used with Heli Coil inserts. Its sized for right hand threads, 2B tolerance, and a 1 1 4 x 12 UNF specification, built to ANSI ASME standards for reliable thread verification. Thread standard: UNF (STI) thread system per ANSI ASME guidelines, ensuring consistent thread validation. Go No Go design: Combined go and no go plug gauge to confirm acceptable thread