The JBO Thread Ring Gauge (GO) is a precision inspection tool used to quickly verify external metric thread sizes. Designed for GO-only checks, it helps engineers, machinists, and quality teams confirm that parts meet the specified thread profile without guesswork. This right-hand, metric fine gauge targets M125 x 1.5 threads, making it ideal for automotive, aerospace, machining, and general production environments.

Crafted from hardened steel for outstanding wear resistance, the gauge delivers reliable, repeatable results through demanding production runs. Its compact, donut-shaped form makes it easy to handle and slide over threaded components, guiding inspectors to an immediate pass/fail result and supporting tighter quality control.

• Precise GO gauge for metric fine threads: Quickly verify external thread diameter against the M125 x 1.5 standard, speeding up inspections and reducing guesswork in quality checks.
• Hardened steel construction: Built to endure daily use in busy workshops, resisting wear and maintaining dimensional integrity over time.
• Right-hand, metric fine compatibility: Designed for straightforward alignment with standard right-hand threads, simplifying setup and improving inspection consistency.

By providing fast, reliable Go/no-go feedback, this gauge helps you streamline quality control, minimize downtime, and ensure components consistently meet your exacting thread specifications. With long service life and simple operation, you can integrate it into your existing inspection routines with confidence.