The JBO Thread Ring Gauge (GO) - Metric Fine is a precision tool designed to quickly and reliably verify external thread sizes in a variety of industries. Ideal for inspectors, machinists, and maintenance teams, this GO gauge helps you determine whether components meet the exact M64 x 1.5 metric fine specification on the external threads.

• Precise metric thread verification: Quickly confirm whether external threads meet the M64 x 1.5 standard, enabling fast pass/fail decisions and keeping quality checks on schedule.
• Rugged hardened steel construction: Built to endure daily use in busy workshops, delivering long-lasting wear resistance and dependable performance over time.
• Easy-to-use, right-hand design: Clear geometry and straightforward handling help you identify compliant parts with minimal effort, reducing setup time and downtime.

By delivering consistent, straightforward measurements, this GO gauge supports dependable quality control and precise threading across production runs. It helps streamline inspections, minimize rework, and ensure reliable assembly or fitting of threaded components in both manufacturing and maintenance environments.