The JBO Thread Plug Gauge (GO) – Metric Fine, Right Hand, 6H, M130 x 4 is a precise go gauge designed to quickly verify the quality of threaded holes. Built for engineers, machinists, quality inspectors, and shop floor teams, it provides a reliable pass/fail check to ensure internal threads meet exact specifications.

Crafted from hardened steel, this GO gauge offers exceptional wear resistance and long service life in demanding environments. Its straightforward design makes it easy to identify properly threaded holes during inspections, helping you maintain consistent quality control and efficient workflows.

• Precise metric fine thread profile: Delivers consistent hole checks for reliable go/no-go decisions across materials and finishes, reducing ambiguity in inspection results.
• Hardened steel construction: Delivers lasting durability and dimensional stability, resisting wear and maintaining accuracy through many uses.
• Fast go/no-go verification: Enables quick, clear pass/fail checks that speed up setup, reduce downtime, and support smooth production cycles.

Used as a dependable reference in quality assurance and manufacturing processes, this gauge helps you streamline inspections, minimize rework, and achieve repeatable results. Its durable build and simple operation translate to fewer tool changes and more consistent part quality across runs.