VCOIL Plug Gauge (NoGo) - Metric (STI) - Heli Coil Gauge - Right Hand - 4H - M45 x 3 S&E and a long neck makes

and a long neck makes it a practical choice for finishing cavities

With a right‑hand cutting action and DIN 212‑B specification

Toolex Reamer is an intermediate-precision straight-shank reamer built for finishing holes with tight tolerance in metalworking

user-friendly QC checks: Simple insertion and clear go/no-go indications

Built for machinists and shops that demand clean slots with consistent results

VCOIL Plug Gauge (NoGo) - Metric (STI) - Heli Coil Gauge - Right Hand - 4H - M45 x 3 S&E and a long neck makesA precision metric thread plug gauge designed for helicoil installations. The VCOIL NoGo gauge delivers reliable go no go checks for M45 x 3 threads with 4H tolerance, built for machinists, inspectors, and maintenance technicians who need quick, accurate validation. Go No Go design: Combined thread plug gauge with go and no go ends; scrap side is marked with a red ring. The go end must screw into the thread by hand, while the scrap side must not be