The JBO Thread Ring Gauge (NoGo) - Metric Fine is a precision inspection tool used to verify external thread diameters on threaded components. Engineered for M85 x 6 with a 6g tolerance and a right-hand thread, it is ideal for machining, manufacturing, and quality-control environments that require quick, reliable checks.

Made from hardened steel, the gauge resists wear in busy workshops and maintains accuracy over many uses. Its straightforward NoGo design makes it easy to identify parts that do not meet specs, helping your team reduce rejects and keep production moving smoothly.

• NoGo verification for metric fine threads: Delivers a clear pass/fail limit for external threads (M85 x 6, 6g), so you can quickly determine if a part is within tolerance and prevent non-conforming components from advancing.
• Durable hardened steel construction: Built to withstand daily use in demanding environments, providing long service life and consistently accurate readings over time.
• Right-hand orientation with easy setup: Designed for straightforward engagement with standard threads, reducing setup errors and speeding up inspections while ensuring reliable results.

Using this gauge helps streamline quality control by enabling fast, confident decisions on part acceptance. The combination of precise dimensions and rugged materials supports repeatable inspections across batches, reducing downtime, rework, and the risk of mismatched assemblies. Whether on the shop floor or in a maintenance bay, it delivers dependable performance that you can trust for critical threading checks.