The JBO Thread Plug Gauge is a precision Go/No-Go gauge designed for metric fine threads. It helps machinists, inspectors, and technicians quickly verify threaded holes meet exact specifications, improving first-time fit and reducing rework in manufacturing and maintenance environments.

With a Right Hand configuration, 6G tolerance, and an M33 x 1 size, this hardened steel gauge is built for repeated use in busy workshops. The knurled body provides a secure grip for precise alignment, even when wearing gloves, ensuring consistent measurements across the shop floor.

• Go/No-Go design for rapid checks: Quickly confirm whether a hole meets the minimum (Go) and maximum (No-Go) limits, speeding up inspections and minimizing downtime.
• Durable, wear‑resistant construction: Hardened steel stands up to daily use, with a textured knurled surface for secure handling and repeatable results over countless cycles.
• Metric fine-thread compatibility: M33 x 1, 6G right-hand: Precisely calibrated for fine-thread applications, delivering reliable, repeatable measurements that align with standard 6G internal thread specs.

Using the JBO Thread Plug Gauge helps you verify hole tolerances accurately, streamline quality checks, and ensure components mate correctly the first time. This translates to faster assembly, fewer defects, and consistent performance across production runs.