VCOIL Plug Gauge (D/E) - Metric (STI) - Heli Coil Gauge - Right Hand - 4H - M20 x 1.5 Face Mill Arbors - Through Coolant while the controlled flute geometry

while the controlled flute geometry supports stable guidance during manual reaming

while simple

This combination supports precise hole size control with consistent surface finish

Designed to finish drilled holes to tight ISO H5 tolerance

VCOIL Plug Gauge (D/E) - Metric (STI) - Heli Coil Gauge - Right Hand - 4H - M20 x 1.5 Face Mill Arbors - Through Coolant while the controlled flute geometryThe VCOIL Plug Gauge (D E) is a precision metric thread gauge designed for Helicoil insert applications, built for machinists and quality control professionals who verify M20 x 1. 5 right hand threads. Go No Go plug gauge: Combines go and no go ends for a quick, single tool thread quality check. Metric (STI) thread form: M20 x 1. 5 right hand thread compatible with Helicoil inserts. D E Series (Helicoil gauge): Specifically tailored for VCOIL helicoil