VCOIL Plug Gauge (D/E) - UNF (STI) - Heli Coil Gauge - Right Hand - 2B - 1.1/4 x 12 G 5 micron run-out for exceptional

5 micron run-out for exceptional concentricity: Achieves tighter tolerances and smoother finishes by minimizing tool deviation during rotation

helping you achieve accurate parts pass after pass

Used for finishing and enlarging small holes to precise sizes

The tool uses a left-hand spiral flute with right-hand cutting and conforms to DIN 8089

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

VCOIL Plug Gauge (D/E) - UNF (STI) - Heli Coil Gauge - Right Hand - 2B - 1.1/4 x 12 G 5 micron run-out for exceptionalThe 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