The JBO Thread Ring Gauge (GO) for Electrical Conduit is a precision measurement tool designed to verify external thread diameters on conduit fittings. It helps inspectors and shop floor crews quickly determine whether a threaded part conforms to required sizes, supporting reliable assembly and long-term performance.

Designed for right-hand M50 x 1.5 threads (8g) and built for demanding environments, this GO gauge delivers consistent, fast checks that keep production moving. Crafted from hardened steel, it offers exceptional wear resistance and durability, ensuring accurate measurements through many cycles of use in busy workshops or on-site jobs.

• Go/No-Go quick verification for conduit threads: Delivers clear pass/fail results for the specified right-hand threads, enabling fast, reliable quality checks and reducing rework.
• Durable hardened steel construction: Withstands daily use in busy workshops and field projects, preserving accuracy and extending tool life.
• User-friendly inspection design: Easy to align and read, helping you identify conforming components at a glance and streamline your quality-control workflow.

This gauge supports precise, consistent measurements that improve workflow, speed up inspections, and drive reliable results across electrical conduit applications.