VCOIL Plug Gauge (GO) - Metric (STI) - Heli Coil Gauge - Right Hand - 4H - M42 x 4.5 Morse Taper Adaptor it delivers a stable grip

it delivers a stable grip and repeatable results in milling

Its clutch-free design keeps operation simple

and enabling cleaner cuts on challenging geometries

use only round shanks with no clamping flats—flats will render the seal ineffective

Diameter: 13 mm end mill for broad

VCOIL Plug Gauge (GO) - Metric (STI) - Heli Coil Gauge - Right Hand - 4H - M42 x 4.5 Morse Taper Adaptor it delivers a stable gripThe VCOIL GO plug gauge is a metric, right hand Helicoil gauge designed to verify that M42 x 4. 5 threads meet established standards. Its built for precision environments where a reliable hand screwed go test quickly confirms thread acceptance. Gauge Type: GO plug gauge for metric (STI) threads used to validate the thread cut against standard specifications. Thread Size & Handedness: M42 x 4. 5, right hand thread, 4H tolerance tailored for Helicoil