VCOIL Plug Gauge (D/E) - UNC (STI) - Heli Coil Gauge - Right Hand - 3B - No. 5 x 40 Widin New Left-hand spiral flute with right-hand

Left-hand spiral flute with right-hand cutting: Provides downward chip evacuation and clean bore finishes

Chip evacuation: Optimized flute geometry helps clear chips and reduce clogging during heavy cuts

Left-hand flute with straight shank for reliable cutting: Left-hand spiral flute aids chip evacuation and cutting stability

5 mm minimum diameter and 10 mm reach let you access narrow pockets and short through-holes with consistent geometry and reliable results

making it a reliable choice for workshops prioritizing accuracy and consistency

VCOIL Plug Gauge (D/E) - UNC (STI) - Heli Coil Gauge - Right Hand - 3B - No. 5 x 40 Widin New Left-hand spiral flute with right-handThe VCOIL Plug Gauge (D E) UNC (STI) Right Hand, 3B No. 5 x 40, is a precision thread limit gauge designed for quick, reliable verification of UNC right hand threads used with Helicoil inserts. Built to ANSI ASME standards, it combines go and no go functionality in a single, easy to use tool. Go No Go Thread Limit Gauge: A single instrument that provides both go and no go checks to confirm thread acceptance against specified tolerances. Thread Type: