VCOIL Plug Gauge (GO) - UN (STI) - Heli Coil Gauge - Right Hand - 2B - 1.3/4 x 8 Milling Cutter Arbors and workshop teams who demand

and workshop teams who demand consistent results in turning

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

and protects downstream productivity by catching non-conforming threads at the source

resulting in crisper edges and better surface finish

repeatable checks in both production lines and maintenance environments

VCOIL Plug Gauge (GO) - UN (STI) - Heli Coil Gauge - Right Hand - 2B - 1.3/4 x 8 Milling Cutter Arbors and workshop teams who demandThe 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