The JBO Thread Ring Gauge (GO) for Metric Coarse threads, Right Hand, 6e, M5 x 0.8, is a precision tool designed to quickly verify external threads on metric coarse fasteners and components. Built for engineers, inspectors, and machinists, it delivers reliable GO checks that confirm parts meet the standard coarse-thread specification for a correct fit and dependable performance.

• Accurate, repeatable GO checks: The hardened steel construction maintains precise internal threads and ring dimensions, delivering consistent results across production runs.
• Durable, wear-resistant construction: Hardened steel resists wear from frequent use, preserving calibration and extending service life in busy workshops.
• Ergonomic, fast-handling design for QC workflows: Knurled outer surface and straightforward GO sizing enable quick insertion and reliable pass/fail decisions, reducing downtime.

Using the GO gauge ensures external threads meet M5 x 0.8 coarse-thread specifications, so parts fit correctly the first time and assemblies perform reliably. The rugged steel body stands up to daily use in production or inspection labs, helping maintain calibration and reducing rework, returns, and downtime. With its straightforward operation, technicians can speed up quality checks, improve traceability, and keep your machining or assembly workflow moving smoothly.