The JBO Thread Ring Gauge (NoGo) in Metric Fine, Right Hand, 6g with M56 x 3 threading is a precision inspection tool designed to verify external thread diameters. Specifically, it helps quality teams quickly determine whether a part’s threads stay within acceptable limits, enabling fast pass/fail decisions during manufacturing, assembly, or repair work.

• Go/No-Go verification for external threads: Quickly determine if the M56 x 3 threads meet the maximum allowable diameter, helping you identify non-conforming parts in seconds and keep production moving.
• Durable hardened steel construction: Built to resist wear and maintain accurate measurements through daily, high-use shop environments for long-lasting reliability.
• Metric Fine, right-hand compatibility: Precisely matched to common metric fine-thread standards, ensuring consistent checks with standard components and reducing the need for multiple gauges.

This gauge provides a reliable, repeatable method to confirm thread dimensions, reducing rework and assembly issues while supporting precise quality control. Its rugged construction and standard metric fine specification help you streamline inspections, improve workflow efficiency, and deliver consistent results across your machining, maintenance, and testing processes.