The JBO Thread Plug Gauge is a right-hand internal thread go/no-go gauge designed for metric coarse threads. Sized for M12 x 1.75 with a 6H tolerance, it helps machinists, quality control inspectors, and assembly teams quickly verify threaded holes meet specification.

Built for durability, the gauge is made from hardened steel to withstand daily use in busy workshops. A knurled grip on the body provides secure handling, while the go/no-go test gives a clear pass/fail check for hole readiness, helping reduce rework and ensure consistent assembly results.

• Go/No-Go Quick Verification: Quickly confirm hole size with a simple pass/fail test, reducing inspection time and rework.
• Hardened Steel Durability: Durable construction resists wear and maintains accuracy through frequent use in demanding environments.
• Designed for M12 x 1.75 Coarse Threads: Precisely matched to metric coarse thread standards for reliable fits and repeatable measurements.

With this gauge, you can streamline quality checks, speed up setup, and improve assembly reliability across maintenance, manufacturing, and assembly tasks. Its proven durability and precise threading support consistent results, helping your team cut downtime and avoid costly misfits.