The JBO Thread Ring Gauge (NoGo) is a precision inspection tool designed to verify the outer threads on cylindrical components. It’s ideal for engineers, machinists, quality teams, and workshop professionals who need fast, reliable checks to confirm mating parts meet exact diameter limits.

Designed for metric fine threads, this NoGo gauge handles M42 x 1 with right-hand threading and a 6g tolerance. Crafted from hardened steel, it delivers outstanding wear resistance and dimensional stability, so it stays accurate through frequent use in demanding shop environments.

• Hardened steel construction: Built to endure daily inspection tasks, resisting wear to maintain long-term accuracy and tool life.
• NoGo gauge for metric fine external threads (M42 x 1, right-hand, 6g): Quickly identifies out-of-tolerance parts by confirming the maximum acceptable thread diameter, helping prevent improper assemblies.
• Ergonomic, durable design: Knurled edge and robust ring shape provide secure handling and easy placement, ensuring reliable performance in busy inspection stations.

Incorporating the JBO Thread Ring Gauge into your quality checks gives you a fast, repeatable method to validate external threads, reducing rework and ensuring consistent fits across batches. Its durable construction and standard-compliant sizing support confidence in every measurement, from incoming parts to final assembly, helping your team streamline inspections and improve overall performance.