The 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 in accordance with ANSI/ASME thread system standards, this plug gauge is purpose-built for metric STI inserts. Its right-hand design, 6H tolerance, and M4 x 0.7 specification support consistent, repeatable measurements, while the DAkkS-calibrated certification provides traceable accuracy for audits and quality control programs.

• Metric STI compatibility with M4 x 0.7: Precisely sized for the M4 x 0.7 screw thread inserts, enabling fast, reliable pass/fail checks on inserts in busy production environments.
• DAkkS-calibrated with ANSI/ASME alignment: Includes traceable calibration and a right-hand 6H geometry to ensure consistent readings across multiple setups and operators.
• Rugged, user-friendly construction: Knurled, durable body and smooth engagement points provide confident handling and long service life in demanding settings.

This plug gauge helps you accelerate quality control, reduce rework, and maintain consistent results across shifts. With DAkkS calibration and ANSI/ASME-aligned geometry, you can trust its readings for audits and daily inspections, ensuring your STI inserts meet exact specifications every time.