The JBO Thread Ring Gauge (NoGo) is a precision inspection tool designed to verify external UNF threads on left-hand components. It’s ideal for manufacturing, automotive, and aerospace environments where quick, reliable thread checks are essential to maintain quality and ensure proper fitment.

Crafted from hardened steel for lasting accuracy, this NoGo gauge delivers durable performance in busy workshop settings. The knurled outer edge enables a secure grip during use, and a red alignment marker helps you orient the gauge quickly for fast, confident Go/No-Go decisions.

• Go/No-Go verification for quick conformance: Lets you instantly confirm whether a threaded part meets or exceeds specifications, speeding inspections and reducing rework on the line.
• Hardened steel construction for longevity: Built to withstand repetitive use in demanding environments while maintaining precise measurements over time.
• UNF Left-Hand, 2A, 1 1/4 x 12 sizing: Specifically designed for left-hand UNF threads with a standard size and tolerance class to ensure accurate, repeatable testing across components.

This gauge supports efficient quality control by delivering reliable, easy-to-interpret checks that translate into smoother workflows, fewer delays, and consistently accurate results across production and maintenance tasks.