The JBO Thread Plug Gauge is a precision tool designed for metric fine threads, enabling rapid, reliable checks of threaded holes to ensure optimal fit and performance in assemblies.

Designed for right-hand applications with a 6H bore tolerance and an M5.5 x 0.5 thread size, this gauge delivers consistent results across parts and shifts. The Go/No-Go design lets technicians quickly verify holes meet spec without complex measurements, reducing downtime and rework.

• Go/No-Go quick checks for metric fine threads: instantly verify hole tolerance without detailed measurements, speeding up quality control and reducing inspection time.
• Hardened steel construction for durability: withstands daily use in busy workshops while maintaining long-term accuracy and wear resistance.
• Right Hand, 6H, M5.5 x 0.5 precision fit: engineered to match the exact size and bore tolerance, ensuring reliable insertion, withdrawal, and repeatable results during inspections.

With the JBO Thread Plug Gauge, you streamline inspection workflows, confirm correct thread fit at a glance, and minimize rework. Its hardened steel body resists wear, so accuracy remains reliable through daily use, helping you speed up assembly, improve first-pass quality, and maintain consistent results across batches.