The JBO Thread Plug Gauge is a precision inspection tool designed for metric coarse threads. It helps machinists, quality control staff, and assembly technicians quickly verify that threaded holes conform to the M2.6 x 0.45 coarse-thread standard, using a reliable go/no-go check that confirms fit and function.

• Hardened steel construction: Built to endure daily use in busy workshops, providing long-lasting durability and stable readings over many inspections.
• Efficient go/no-go verification: Quickly confirm whether a threaded hole meets tolerance, speeding up inspections and reducing downtime in production or assembly lines.
• Metric coarse, right-hand 6H M2.6 x 0.45 calibration: Precisely sized for the intended coarse thread with a right-hand orientation and 6H tolerance, delivering reliable, repeatable checks across parts and batches.

This gauge helps you maintain consistent quality from part to part. By delivering fast, objective pass/fail results with a durable, dedicated tool, it supports improved workflow, reduces rework, and increases confidence in threaded-hole assemblies on the shop floor or in the quality lab.