The JBO Thread Ring Gauge (GO) in Metric Fine is a precision tool for quickly and reliably verifying external thread diameters on fasteners and threaded components. Designed for metric fine threads such as M5 x 0.5 and for right-hand threads, it helps engineers, quality teams, and workshop professionals confirm conformance with standard thread sizes during inspection.

• Precise metric fine GO gauge: Quickly verify external thread sizes (e.g., M5 x 0.5) to confirm parts meet the required standard, enabling fast, confident pass/fail decisions.
• Hardened steel construction: Delivers exceptional wear resistance and long service life in demanding workshops, maintaining measurement accuracy over time.
• User-friendly, quick-check design: Enables effortless identification of conforming threads, speeding up quality control and reducing inspection downtime.

By using this GO gauge, you’ll speed up inspections, reduce guesswork, and document thread conformity with confidence. Its rugged construction stands up to daily use, delivering stable, repeatable measurements that help you maintain tight tolerances, minimize rework, and keep production on track.