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predictable hole sizes across demanding finishing tasks
Right-hand thread compatibility: Designed for standard right-hand threaded holes
helping you optimize hole quality and tool life
while the 6 mm shank provides compatibility with a wide range of milling machines
VCOIL Plug Gauge (GO) - UNF (STI) - Heli Coil Gauge - Right Hand - 3B - 1.3/8 x 12 FHH predictable hole sizes across demandingPrecise GO plug gauge for UNF (STI) right hand threads, purpose built for Helicoil insert applications. Ideal for workshop and quality control environments that strictly follow ANSI ASME thread standards. Gauge Type: GO thread plug gauge used to verify that the thread cut in a part will screw in by hand without excessive force. Thread System: UNF (STI) Right Hand Thread Size: 1. 3 8 x 12 UNF Size Class: 3B Calibration & Standards: Manufactured to ANSI
