The JBO Thread Ring Gauge (NoGo) - Metric Coarse, Left Hand, 6g, M3.5 x 0.6 is a precision inspection tool for verifying external thread diameters and tolerance. It’s ideal for engineers, machinists, quality teams, and maintenance professionals who need quick, reliable checks during production, assembly, and repair work.

Made from hardened steel for outstanding durability, this NoGo gauge resists wear in busy workshops and long shifts. Its simple, user-friendly design delivers clear pass/fail results, helping you identify non-conforming components fast and keep your processes in spec.

• Durable hardened steel construction: Crafted from hardened steel to resist wear and deformation, delivering long tool life even in high-use environments.
• Precise NoGo verification for metric coarse threads: Accurately checks M3.5 x 0.6 coarse threads, enabling quick pass/fail decisions and reducing inspection time and rework.
• Left-hand thread compatibility: Specifically designed for left-handed metric coarse threads, ensuring accurate testing across a wider range of components.

This ring gauge helps streamline your quality control workflow by delivering fast, reliable measurements that support consistent fit, reliable assembly, and reduced downtime. By clearly identifying non-conforming parts at the source, it minimizes delays and rework, improves first-pass yield, and supports traceable inspections in production, maintenance, and engineering environments.