VCOIL Plug Gauge (D/E) - Metric (STI) - Heli Coil Gauge - Right Hand - 4H - M3.5 x 0.6 FMH 5 right-hand threads and is

5 right-hand threads and is ideal for machinists

Its robust build supports reliable results across busy workdays

By reducing vibration and delivering crisp radii

is a precision tool designed for machinists

This combination helps you finish holes cleanly and consistently

VCOIL Plug Gauge (D/E) - Metric (STI) - Heli Coil Gauge - Right Hand - 4H - M3.5 x 0.6 FMH 5 right-hand threads and isThe VCOIL Plug Gauge (D E) is a precision metric thread gauge for STI Helicoil inserts, designed to verify M3. 5 x 0. 6 internal threads with a right hand orientation. It combines go and no go functions in one easy to use tool to support rigorous quality control of threaded assemblies. Metric (STI) compatibility: tailored for M3. 5 x 0. 6 threads to align with STI metric standards and right hand threading. Go No Go thread plug gauge: a single tool