The JBO Thread Plug Gauge is a precision tool designed for metric fine threads. Sized for M6 x 0.25 with a 6H tolerance, it helps machinists, quality teams, and assembly professionals quickly verify threaded holes align with spec.

Two ends with a Go/No-Go design enable fast pass/fail checks, so you can confirm fit without guesswork or downtime. The hardened steel construction stands up to daily workshop use, delivering reliable performance and long life, even in demanding environments. Designed for right-hand threaded holes, the gauge integrates smoothly into standard assembly workflows.

• Go/No-Go Quick Verification: Quickly confirm hole threading is within tolerance, reducing rework and inspection time.
• Metric Fine Thread Precision (M6 x 0.25, 6H): Specifically designed for M6 fine-thread holes and 6H tolerance, ensuring accurate, repeatable checks that match standard assemblies.
• Durable Hardened Steel with Right-Hand Design: Built for heavy use; knurled grip and right-hand ends provide secure handling and compatibility with common right-hand thread workflows.

By using this plug gauge, you’ll streamline hole inspection, cut testing time, and boost confidence that every M6 x 0.25 thread pair fits as intended. Its Go/No-Go verdicts speed up decisions during setup, maintenance, and assembly, while the hardened steel body resists wear for years of dependable use in workshops, labs, or on the production floor.