The JBO Thread Ring Gauge (GO) - Metric Fine is a precision inspection tool designed to verify external thread diameters quickly and reliably. Made for machinists, quality control professionals, engineers, and workshop technicians, it helps ensure metric fine threads meet the required fit and standard tolerances. With its GO design, this gauge simplifies conformance checks for a wide range of threaded components, including M2.2 x 0.25 (right hand, 6g).

• Precise Go Gauge for Metric Fine Threads: Quickly verify external threads against the M2.2 x 0.25 (right‑hand, 6g) standard, enabling fast pass/fail decisions and consistent quality across parts.
• Durable Hardened Steel Construction: Built to withstand daily use in busy shops, resisting wear and maintaining dimensional accuracy for long service life.
• User‑Friendly Conformance Identification: The GO design makes it easy to identify properly conforming threads, simplifying inspections and reducing misreads on the shop floor.

By delivering quick, reliable conformance checks, the JBO Thread Ring Gauge helps you speed up quality control, reduce rework, and keep threaded components in spec—from prototype through production. Its precision geometry and tough materials support accurate measurements and dependable performance in demanding environments.