The JBO Plug Gauge is a precision metric plug gauge designed for metric Screw Thread Inserts (STIs), built for inspectors, engineers, machinists, and quality teams who need fast, reliable verification of insert size and fit. Calibrated to DAkkS and manufactured to ANSI/ASME thread standards, this right-hand gauge checks M16 x 2, 6H inserts with consistent, traceable results.

• DAkkS-Traceable Calibration: Provides official calibration documentation and measurement traceability for quality control and audits, helping you meet strict production standards.
• Metric STI Compatibility (M16 x 2, 6H): Precisely verifies metric thread inserts against STI specifications, reducing guesswork and rework during assembly and maintenance.
• Rugged, Precision-built Construction: Durable metal body with a knurled grip and corrosion resistance delivers long service life and repeatable measurements in busy workshop environments.

This plug gauge supports faster, more reliable inspections, helping you maintain consistent thread quality, streamline QA workflows, and safeguard the fit and performance of threaded assemblies across manufacturing, automotive, and aerospace applications.