VCOIL Plug Gauge (GO) - UNF (STI) - Heli Coil Gauge - Right Hand - 3B - 1.1/2 x 12 Face Mill Arbors - Anti-Vibration while the combined left-hand flute

while the combined left-hand flute and right-hand cutting support efficient chip evacuation and stable cutting

straight-shank design supports stable mounting and straightforward integration into existing tooling setups

Left-hand spiral flute with right-hand cutting on a straight shank: Optimizes chip evacuation and stable alignment in through-holes

this arbor keeps cutting heads true and securely mounted for demanding operations

more accurate hole finishes with stable cutting action

VCOIL Plug Gauge (GO) - UNF (STI) - Heli Coil Gauge - Right Hand - 3B - 1.1/2 x 12 Face Mill Arbors - Anti-Vibration while the combined left-hand fluteThe VCOIL GO plug gauge is a precision tool for verifying UNF (STI) right hand threads used with Helicoil inserts. Designed for hands on acceptance checks, it confirms the cut thread meets the required standard before assembly. Go gauge type: Screws into the thread cut by hand to verify acceptance criteria without applying excessive force. Thread specification: UNF (STI), right hand, 1 1 2 x 12, 3B class. Standards compliance: Manufactured and