The JBO Thread Ring Gauge (GO) - Pg is a precision tool for quickly verifying external thread diameters across a range of industries, from manufacturing to maintenance and quality control. Sized as Pg 13.5 x 18 and configured for Right Hand threading, this GO gauge helps inspectors confirm that parts meet the required thread standards with clear, actionable results.

Crafted from hardened steel, the gauge delivers durable, wear-resistant performance in demanding workshop environments. Its simple, intuitive design makes it easy to identify conforming threaded components at a glance, supporting fast, reliable inspections and reducing the chance of misreads during QC checks.

• Precise GO verification for external threads: Quick pass/fail checks on external thread diameters at Pg 13.5 x 18, helping you confirm compliance with minimal handling and rework.
• Durable hardened steel construction: Built to endure daily use in workshops, resisting wear and corrosion to keep measurements stable over time.
• User-friendly right-hand GO configuration: Intuitively oriented for fast identification of conforming parts, reducing inspection time and training effort.

Using the JBO Thread Ring Gauge (GO) - Pg helps you streamline quality control, enabling consistent thread quality across components, reducing downtime, and giving your team confidence in every measurement.