JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6g - M40 x 0.5 is a precision inspection tool used to verify external thread diameters on fasteners, components, and machined parts. Designed for engineers, manufacturers, quality control teams, and workshop technicians, it helps ensure threads meet exact size and tolerance requirements with reliable, repeatable results.

• Precise NoGo verification for Metric Fine threads: Quickly determine whether an external thread diameter is within tolerance for M40 x 0.5, enabling fast pass/fail decisions and reducing returns or rework.
• Hardened steel construction for durability: Resists wear and impact in daily shop use, maintaining measurement accuracy over time and providing long service life in demanding environments.
• Right-hand orientation and intuitive handling: Designed to match standard right-hand threads, with straightforward alignment that speeds setup and minimizes human error in busy inspection areas.

Using this gauge streamlines your quality control workflow by delivering fast, dependable thread checks that support precise assembly and reliable performance in the field. The combination of precise metrics, durable materials, and an easy, user-friendly design helps you reduce downtime, cut scrap, and maintain consistent thread quality across batches.