The JBO Thread Ring Gauge (NoGo) is a precision tool for inspecting external, metric fine threads. Specifically configured for M28 x 2 right-hand threads with a 6g tolerance class, it helps engineers, inspectors, and machinists verify that thread diameters stay within spec and ensure parts fit and function correctly.

Built for busy workshops, this NoGo gauge combines meticulous dimensions with durable materials to deliver repeatable results, even in demanding environments. Its user-friendly design makes it easy to identify non-conforming components at a glance, supporting efficient quality control and precise engineering.

• Precise NoGo verification for M28 x 2 metric fine threads: Quickly determine if an external thread exceeds the maximum allowable size, ensuring parts meet the M28 x 2 right-hand metric fine thread standard and enabling fast pass/fail decisions.
• Durable hardened steel construction: Built to withstand daily use in demanding workshops, providing long service life and consistent performance through wear resistance.
• User-friendly right-hand orientation: Designed for easy handling with correct alignment for right-hand threads, helping you identify conforming versus non-conforming parts quickly and confidently.

Using the gauge streamlines inspections, reduces guesswork, and minimizes rework by giving clear, repeatable results. It helps you maintain consistent thread certifications across parts, improves workflow efficiency, and supports reliable assembly and maintenance outcomes in manufacturing, engineering, and quality control.