The JBO Thread Ring Gauge (NoGo) in Metric Fine is a precision inspection tool for verifying external thread diameters on small fasteners and components. Sized for right-hand threads with M3.5 x 0.3 pitch and a 6g tolerance, it helps engineers, machinists, and quality teams confirm part accuracy quickly and reliably.

• Precise metric fine thread sizing: Matches M3.5 x 0.3 right-hand threads with 6g tolerance for repeatable, quick checks.
• Hardened steel construction: Delivers long-lasting wear resistance and maintains accuracy even after heavy use in busy workshops.
• Fast Go/No-Go inspections: Intuitive design provides clear pass/fail feedback, reducing inspection time and downtime.

By providing quick, unambiguous measurements of external threads, the JBO NoGo Ring Gauge helps you streamline inspection workflows, cut down on rework, and ensure every threaded part meets the required standard. The durable build, precise tolerances, and clear pass/fail feedback give technicians and buyers confidence in their measurements, making it a reliable addition to any shop, QA lab, or field service kit.