The JBO Thread Ring Gauge (GO) – Metric Fine is a precision tool engineered to verify external threads with reliability and speed. Designed for right-hand M29 x 1 threads, this GO gauge is ideal for engineers, machinists, quality inspectors, and assembly teams who need quick, dependable pass/fail checks on threaded components.

Built from hardened steel and featuring a knurled outer edge for secure handling, the gauge delivers durable performance in demanding workshop environments. Its exact metric fine dimensions, aligned to a 6g tolerance, support consistent inspections and standard-compliant results even in high-volume production settings.

• Precise GO gauge for metric fine threads: Specifically tuned for M29 x 1 right‑hand threads, providing clear, repeatable pass/fail readings to verify threaded parts meet exact size and pitch specifications.
• Hardened steel construction for durability: Designed to withstand daily use, resist wear, and maintain dimensional accuracy over time in busy workshops and quality labs.
• Ergonomic, easy-to-use design for fast inspections: Knurled exterior and clean engagement face enable quick placement and straightforward readings, reducing inspection time and operator fatigue.

Using the JBO GO gauge helps streamline quality control by enabling rapid verification of external thread compliance, minimizing rework and derisking assembly processes. Its robust build and precise geometry translate to dependable performance day after day, giving you confidence in measurements, consistent results, and better overall workflow efficiency.