The JBO Thread Ring Gauge (GO) is a precision tool designed to quickly and reliably verify external metric threads. Specifically configured for fine-thread sizes, it is ideal for quality control in manufacturing, machining, and assembly environments where accurate thread validation matters. With a right-hand thread orientation and an M27 x 1 specification, this GO gauge helps inspectors confirm parts meet exact dimensional standards at a glance.

Crafted from hardened steel, the gauge delivers long-lasting durability and wear resistance in demanding work settings. The knurled outer edge provides a secure, non-slip grip for easy handling, while the GO face offers a clear, immediate pass/fail indication to speed up inspections and reduce handling errors.

• Accurate GO gauge for metric fine threads: Quickly verify external thread diameters to the M27 x 1 standard, enabling fast go/no-go decisions on parts and assemblies.
• Hardened steel construction: Built to endure daily workshop use, resisting wear and maintaining measurement integrity over time in harsh environments.
• Ergonomic, knurled design for easy handling: Textured grip and clear orientation support secure, repeatable checks, helping inspectors work efficiently with confidence.

This gauge supports streamlined quality control by delivering dependable, repeatable results, reducing inspection time, and helping teams meet exacting standards with every component.