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and improved consistency in thread quality
reducing post-processing and marking
Left‑hand spiral flute with right‑hand cutting: Optimizes chip evacuation and cutting stability for clean
trustworthy feedback
using durable M2 high‑speed steel and a left‑hand spiral flute for effective chip control
JBO Plug Gauge - Metric Fine (STI) Heli Coil Gauge - Right Hand - 6H - M12 x 1.5 - Calibrated (DAkkS Calibration) Insert and improved consistency in threadThe JBO Plug Gauge Metric Fine (STI) is a precision go no go gauge designed to verify metric screw thread inserts (STIs). With a right hand orientation and a 6H tolerance for M12 x 1. 5, it provides a quick, reliable way to confirm that inserts meet specification. Built to ANSI ASME thread standards, this gauge supports accurate inspections across manufacturing, automotive, and aerospace environments. Crafted for everyday use, the gauge features a
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