The JBO Thread Plug Gauge is a precision inspection tool designed for metric fine-threaded holes. This model targets internal left-hand threads, specifically M10 x 0.75 with a 6G tolerance, making it ideal for machining, assembly, and quality-control workflows where precise thread engagement matters.

The Go/No-Go design lets you perform quick, reliable checks—a successful Go confirms the hole accepts the gauge, while a No-Go indicates out-of-tolerance conditions. This approach speeds up setup and reduces misfits in production.

• Go/No-Go quick verification: Facilitates fast pass/fail testing of thread holes, cutting inspection time and increasing throughput without guesswork.
• Metric fine-thread precision (M10 x 0.75): Specifically machined for metric fine threads, ensuring accurate, repeatable checks for small-diameter, high-precision holes.
• Durable hardened steel construction: Built to withstand wear in busy workshop environments, delivering long service life and stable measurements over time.

Use this gauge to improve consistency across parts, reduce rework, and accelerate quality control. Its rugged construction and precise tolerance help you verify fits with confidence, supporting efficient manufacturing and reliable assemblies.