The JBO Thread Ring Gauge (NoGo) - Metric Coarse - Left Hand - 6h - M1.4 x 0.3 is a precision NoGo gauge designed to verify external thread diameters to metric coarse standards. It’s a practical tool for quality control, machine shops, and assembly lines, providing a clear pass/fail check to confirm threaded parts will fit as intended.

Crafted for durability, this ring gauge uses hardened steel to resist wear in demanding environments. Its left-hand, 6h, M1.4 x 0.3 specification makes it a reliable choice for inspecting components with these thread characteristics, enabling quick and confident identification of non-conforming parts.

• Accurate NoGo verification for metric coarse threads: Quickly confirms external thread diameters align with the NoGo limit, helping you reject out-of-spec parts at a glance and reduce rework.
• Durable hardened steel construction: Built to withstand daily use in busy workshops, resisting wear to keep readings stable and repeatable over time.
• Left-hand thread readiness (6h, M1.4 x 0.3): Specifically sized for left-hand metric coarse threads, delivering reliable pass/fail checks for these common applications.

Using this gauge supports a streamlined quality process: it delivers fast, dependable measurements that improve inspection throughput, reduce downtime, and help ensure components meet threading standards for reliable assembly and long-term performance.