The JBO Thread Plug Gauge is a precision inspection tool designed for metric fine threads. Built for engineers, buyers, machinists, inspectors, and hobbyists, this Go/No-Go gauge helps you verify threaded holes quickly and with confidence, ensuring parts fit together as intended.

Designed for left-hand threads and metric fine pitches, it targets M36 x 2 with 6H tolerance. The compact gauge features a hardened steel body for long-lasting accuracy in busy manufacturing environments.

• Go/No-Go design for fast, reliable inspection: Quickly confirm both the go and no-go limits of the internal thread, reducing guesswork and rework while maintaining tight tolerances.
• Left-hand metric fine thread compatibility (M36 x 2, 6H): Specifically calibrated for left-hand thread holes, ensuring accurate checks where standard right-hand gauges won't apply.
• Hardened steel construction for durability: With a hardened steel body, this gauge resists wear and maintains precision even in demanding shop conditions.

This gauge helps you ensure correct assembly, speed up quality checks, and minimize defective parts. By providing clear Go and No-Go signals, it supports consistent results across operators and shifts, improving workflow reliability and confidence in your measurements.