The JBO Thread Plug Gauge - UNEF Go-No/Go is a precision inspection tool designed to verify UNEF threaded holes quickly and reliably. Sized for Right Hand threads in 1 3/16 x 18 and 2B class, this Go/No-Go gauge helps quality teams, engineers, and technicians confirm hole conformity during production, assembly, and maintenance.

Its compact, robust design features a knurled body with color-coded ends for quick orientation, making it a dependable on‑the‑floor helper in manufacturing, automotive, and aerospace environments. Built to withstand daily use, this gauge provides consistent results without the need for complex setup.

• Go/No-Go quick verdict: Provides an immediate pass/fail assessment of threaded holes, speeding up inspections and reducing guesswork on the shop floor.
• Precise UNEF size and 2B class: Mirrors the exact thread specification (1 3/16 x 18, UNEF, Right Hand, 2B) to ensure reliable checks and proper fitment of components.
• Durable, user-friendly construction: Knurled body with color-coded ends offers secure handling and quick recognition, delivering long-lasting performance in busy environments.

Using the JBO Thread Plug Gauge streamlines quality control by enabling fast, repeatable checks that prevent non-conforming parts from advancing. It helps reduce downtime, minimizes rework, and supports consistent thread inspections across batches and maintenance tasks. A trusted companion for technicians, inspectors, and buyers who demand accuracy and reliability in threaded hole verification.