The JBO Thread Ring Gauge (NoGo) is a precision tool designed for quick and reliable verification of external thread diameters. Specifically crafted for metric fine threads, this Right Hand gauge targets M64 x 1.5 with a 6h tolerance class, helping inspectors and machinists make fast go/no-go decisions during quality checks on threaded components.

Built from hardened steel, the gauge delivers exceptional durability and wear resistance for repeated use in demanding workshop environments. Its knurled outer edge provides a secure grip, while the distinctive red marker aids rapid orientation and setup, so you can perform checks confidently even with gloves on.

• Precise NoGo for M64 x 1.5, metric fine: quickly verify that external thread diameters do not exceed the maximum size, enabling fast pass/fail decisions during quality inspections.
• Hardened steel construction: offers long-lasting durability and wear resistance, maintaining measurement integrity through heavy use and challenging workloads.
• Ergonomic, easy-to-use design: knurled edge for secure handling and a red alignment marker for fast, repeatable setup, reducing inspection time and operator fatigue.

This gauge supports streamlined quality control by delivering dependable, repeatable results that help keep production on schedule, ensure compliance with thread standards, and foster confidence in every threaded assembly or fastener application.