The JBO UNEF Go-No/Go Thread Plug Gauge is a compact, right-hand inspection tool designed to verify UNEF threads. It’s tailored for professionals in manufacturing, automotive, and aerospace who need fast, reliable go/no-go checks for threaded holes at the precise size of 1 1/8 x 18 with a 2B class.

With its go/no-go design, this gauge lets you confirm conformity at a glance, helping parts move through QA quickly and ensuring fasteners will fit correctly the first time.

• Fast Go/No-Go Verification: Quickly determine if a hole conforms to the UNEF 1 1/8 x 18 2B spec, enabling instant pass/fail decisions and reducing inspection time.
• Precise, Standard-Compliant Size: Engineered to the UNEF 1 1/8 x 18 2B standard, delivering consistent measurements across batches and suppliers.
• Ergonomic, Durable Construction: Knurled grip and robust metal ends provide reliable handling and long service life in busy workshop environments.

Using this plug gauge helps streamline quality assurance, minimizes downtime, and improves assembly reliability. It enables confident inspections of threaded holes, leading to more consistent, high-quality results across manufacturing, automotive, and aerospace applications.