The JBO Thread Ring Gauge (GO) is a precision tool for quickly verifying external metric threads. It helps engineers, machinists, quality inspectors, and workshop staff ensure threaded components meet exact size specifications. Designed for metric fine threads (M90 x 2) with a right-hand orientation and a 6g class, it supports reliable go/no-go checks in production, inspection, and assembly tasks.

The ring gauge’s hardened steel construction provides lasting durability in busy environments, resisting wear as you perform frequent measurements.

• Immediate go/no-go verification: Quickly confirm whether external threads meet the M90 x 2 metric fine standard, speeding up quality checks without guesswork.
• Hardened steel construction: Built to endure daily use in demanding workshops, delivering consistent performance and long service life.
• Simple, identifiable sizing: Clear sizing for metric fine, right-hand threads in 6g class makes it easy to select and read, reducing inspection time and errors.

Using the JBO Thread Ring Gauge (GO) helps you streamline your inspection workflow: it provides fast, repeatable checks that reduce rework, ensures mating parts fit as intended, and supports consistent quality across batches. With its durable build and straightforward operation, you can rely on precise measurements day after day, whether in high-volume production or bespoke projects.