The JBO Thread Ring Gauge (GO) is a precision tool for verifying external thread diameters on fasteners, fittings, and machined components. Designed for metric fine threads with a Right Hand orientation, it provides quick, reliable go/no-go checks to confirm parts meet the M100 x 4 standard.

Crafted from hardened steel, this GO gauge delivers outstanding durability and wear resistance, standing up to the demands of busy workshops and production lines. Its user‑friendly design makes it easy to identify properly conforming components at a glance, supporting consistent quality control and precision engineering.

• Precise metric Go gauge for M100 x 4 threads: Quickly verify external thread diameters to standard with clear go/no-go feedback, speeding up inspection and reducing guesswork.
• Hardened steel construction for long-lasting durability: Withstands daily workshop wear, maintains accuracy, and lowers replacement needs over time.
• Easy-to-use, right-hand orientation: Simple alignment in busy QC environments, enabling fast checks and dependable results across teams.

This ring gauge helps streamline your quality workflow by delivering fast, repeatable checks that integrate smoothly into existing inspection routines. With robust construction and straightforward feedback, you can improve part conformity, reduce rework, and achieve consistent results across shifts.