JBO Plug Gauge - Metric Fine (STI) Heli Coil Gauge - Right Hand - 6H - M20 x 1.5 - Calibrated (DAkkS Calibration) M&D Precise UNC GO gauge for

Precise UNC GO gauge for No

The 4-flute design improves chip evacuation and reduces cutting forces

minimizing wear and maintaining measurement accuracy over time for reliable long-term performance

it delivers stable cutting and clean finishes

even in challenging miniature applications

JBO Plug Gauge - Metric Fine (STI) Heli Coil Gauge - Right Hand - 6H - M20 x 1.5 - Calibrated (DAkkS Calibration) M&D Precise UNC GO gauge forThe JBO Plug Gauge Metric Fine (STI) is a precision go no go tool designed to verify metric screw thread inserts (STIs). Built for professionals across manufacturing, automotive, and aerospace, it provides quick, reliable checks to ensure metric STI inserts meet exact specifications. This Right Hand gauge is calibrated for M20 x 1. 5 (6H) and carries a DAkkS calibration for traceable, audit ready measurements. Calibrated with DAkkS traceability: DAkkS