JBO Plug Gauge - Metric (STI) Heli Coil Gauge - Right Hand - 6H - M4 x 0.7 - Calibrated (DAkkS Calibration) Power Milling Chucks and protective sealing

and protective sealing

Flute Design: 4-flute geometry optimizes chip evacuation and rigidity for cleaner cuts and better dimensional accuracy

maintain calibration

minimizing rework in critical assemblies

The made‑to‑order production means you get a tool tailored to your size and tolerance needs

JBO Plug Gauge - Metric (STI) Heli Coil Gauge - Right Hand - 6H - M4 x 0.7 - Calibrated (DAkkS Calibration) Power Milling Chucks and protective sealingThe JBO Plug Gauge Metric (STI) Heli Coil Gauge Right Hand 6H M4 x 0. 7 Calibrated (DAkkS Calibration) is a precision measurement tool designed to verify metric Screw Thread Inserts (STIs). Built for engineers, inspectors, and shop floor technicians across manufacturing, automotive, and aerospace environments, it delivers quick, reliable go no go checks that confirm inserts meet exact M4 x 0. 7 dimensions and STI standards. Manufactured and assessed