JBO Thread Plug Gauge is a precision tool for metric fine threads, including M3 x 0.25. Its right-hand Go/No-Go design lets you quickly verify threaded holes for a reliable, consistent fit.

• Go/No-Go Quick Checks: The end-to-end design provides a go check for minimum tolerance and a no-go check for maximum tolerance, speeding up inspection and reducing guesswork.
• Hardened Steel Construction: Durable, wear-resistant gauge that stands up to daily use in busy shops, delivering long-lasting accuracy.
• Metric Fine Thread Precision M3 x 0.25: Specifically matched to M3 x 0.25 metric fine threads with right-hand orientation and 6H tolerance, ensuring reliable hole gauging and repeatable results across parts.

Using this gauge helps you speed up thread inspections, reduce rework, and improve assembly reliability. The compact, knurled body provides a secure grip and precise alignment even in tight spaces, while the hardened-steel construction maintains accuracy over many uses. It’s a practical, dependable choice for any shop performing metric fine-thread quality checks.