The JBO Thread Ring Gauge (NoGo) – Metric Fine, Right Hand, M20 x 1.5 is a precision tool designed for technicians and quality teams to verify external threads quickly and accurately. It’s ideal for manufacturers, service shops, and maintenance projects that require reliable thread inspection and conformance to metric standards.

Made from hardened steel, this NoGo gauge delivers dependable durability in busy workshops, resisting wear and maintaining accuracy even with frequent use. Its simple, intuitive design lets inspectors identify non-conforming threads at a glance, speeding up quality checks and reducing scrap.

• NoGo limit for quick conformance checks: Clear NoGo indication helps you quickly identify out-of-tolerance external threads, accelerating inspections and reducing rework.
• Hardened steel construction for long life: Durable material stands up to daily use in demanding environments, preserving measurement integrity over time.
• Metric Fine compatibility (M20 x 1.5, Right-Hand): Precisely matched to this common size and thread direction, ensuring reliable, repeatable checks for metric assemblies.

With the JBO NoGo Ring Gauge, you gain a straightforward, dependable tool that supports consistent quality across parts and batches. It helps you streamline inspection workflows, reduce downtime from misfitted components, and make confident, data-backed decisions during assembly and maintenance.