The JBO Thread Plug Gauge is a precision tool designed for metric fine threads, enabling quick Go/No-Go checks of threaded holes. It’s ideal for machining, assembly, and quality-control workflows where thread fit matters—especially for right-hand threads sized M14 x 1.25 with a 4H tolerance. The knurled body provides a secure grip for confident handling in tight spaces.

• Dual-end Go/No-Go design: Quickly verify both minimum and maximum material conditions with a single, straightforward inspection, speeding up setup and reducing guesswork.
• Hardened steel construction: Built for long life in busy workshops, offering excellent wear resistance and stable, repeatable measurements over many uses.
• Metric fine-thread precision (M14 x 1.25, Right Hand, 4H): Specifically tailored for precise checks of metric fine threads, ensuring reliable fit validation for critical assemblies.

Using the JBO Thread Plug Gauge helps standardize hole inspections, accelerates quality checks, and protects downstream performance by delivering consistent, dependable results. Its rugged construction and clear Go/No-Go feedback give you confidence in every part you assemble, whether you’re prototyping or producing at scale.