VCOIL Plug Gauge (GO) - UN (STI) - Heli Coil Gauge - Right Hand - 2B - 1.3/4 x 8 Milling Cutter Arbors this ER50 collet delivers a

this ER50 collet delivers a reliable grip that you can count on from prototyping through production runs

it delivers rigid performance for deep cavities

and maintain stable cuts for reliable throughput

Precise metric fine GO verification: Quickly confirms external threads match the M4 x 0

boosting productivity in precision work

VCOIL Plug Gauge (GO) - UN (STI) - Heli Coil Gauge - Right Hand - 2B - 1.3/4 x 8 Milling Cutter Arbors this ER50 collet delivers aThe VCOIL Plug Gauge (GO) for UN (STI) Helicoil systems is a precision go gauge crafted to verify internal thread quality to ANSI ASME standards. Designed for right hand threads and sized 1. 3 4 x 8, this 2B class gauge supports reliable, repeatable inspections in quality control workflows. Go gauge for UN (STI) threads: intended to screw into the thread cut in a part by hand without excessive force, confirming conformance or flagging non compliant