The JBO Thread Ring Gauge (GO) – Metric Fine is a precision tool designed for engineers, machinists, quality teams, and maintenance technicians who inspect threaded components. It provides quick, reliable go/no-go confirmation of external threads to ensure parts meet the required standards.

Crafted from hardened steel for durability, this GO gauge is built to perform in demanding shop environments. It targets right-hand, metric fine threads (M12 x 1.5) with a 4h tolerance, helping you verify conformance with confidence and reduce rework.

• Metric fine GO design for M12 x 1.5 (Right Hand): Quickly verify external threads against the 4h tolerance to confirm conformance, speeding up inspection and reducing guesswork.
• Hardened steel construction for durability: Built to resist wear and maintain accuracy through long service in busy workshops and production lines.
• Clear go/no-go readability for easy QC: Offers intuitive, at-a-glance results that streamline quality control and minimize training time.

Using this gauge in your inspection workflow helps you confirm threaded components align with the required standards efficiently, cut downtime, and improve consistency across batches. Its rugged construction and precise dimensions give you confidence that parts will meet specifications on first pass, supporting reliable assembly and long-term performance.