The JBO Thread Ring Gauge (GO) - Metric Fine is a precision inspection tool designed to quickly verify external thread diameters and ensure compliant fit. Built for metric fine threads, including M30 x 0.5, this GO gauge supports fast, go/no-go checks on parts across engineering, manufacturing, and quality-control environments.

• Precise GO check for metric fine threads: Quickly verify external thread diameters against the M30 x 0.5 standard to confirm conformance, reducing guesswork and rework on the line.
• Hardened steel construction for durability: Built to withstand routine shop-floor use, resisting wear so measurements stay reliable over time.
• Right-hand, 6g specification for reliable fit: Optimized for standard right-hand threads in the metric fine class, ensuring consistent results during routine QC checks.

This gauge helps you deliver repeatable, accurate results, speed up inspections, and improve overall workflow. With durable construction and precise sizing, it gives your team confidence that threaded components meet specification on every check, reducing downtime and preventing misfits in assembly.