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it stands up to repeated use in denser materials while preserving sharpness for extended life
000 RPM: Maintains stability at speed
predictable hole sizes across demanding finishing tasks
Material: HSS-E cobalt steel for improved hardness and wear resistance under load
Ideal for hobbyists and professionals alike
VCOIL Plug Gauge (GO) - UNF (STI) - Heli Coil Gauge - Right Hand - 3B - 1.3/8 x 12 FHH it stands up to repeatedPrecise 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
