The JBO Thread Ring Gauge (NoGo) is a precision inspection tool designed to verify external UNC threads quickly and reliably. Sized for 1 3/8 x 6, Right Hand, class 2A, it helps manufacturers, automotive teams, and aerospace shops ensure components meet exact thread standards without guesswork.

Crafted from hardened steel with a precise finish, this gauge delivers durable, repeatable measurements in busy production environments. The NoGo design makes non-conforming threads easy to spot, enabling fast pass/fail decisions that keep assemblies moving and quality consistent.

• NoGo quick-pass/fail verification: The NoGo segment provides an immediate indication if threads are out of tolerance, enabling fast, confident rejection and reduced inspection time.
• Durable hardened steel construction: Built to withstand daily use in busy workshops, maintaining dimensional stability and long service life.
• Standard-compliant UNC sizing (1 3/8 x 6, Right-Hand, 2A): Ensures your parts and processes stay aligned with common thread standards, improving fitment confidence and traceability.

Using the JBO Thread Ring Gauge (NoGo) helps you streamline quality control, reduce rework, and uphold consistent threaded fits across production runs. It supports clean, repeatable inspections and gives your team a reliable tool to verify proper thread engagement, promote efficient workflows, and sustain high-quality outcomes in every project.