JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 4h - M55 x 2 is a precision external thread gauge used to verify metric thread diameters during inspection, assembly, and quality control. Its straightforward GO function helps ensure components meet exact size requirements, making it a reliable tool for shops, factories, and maintenance departments.

• Hardened steel construction: Built from hardened steel to resist wear and deformation, delivering durable, long-lasting performance in busy work environments while preserving measurement accuracy over many uses.
• Fast GO checks for metric fine threads: Designed for quick, decisive GO determinations on metric fine threads (including M55 x 2), enabling inspectors to approve or reject parts in seconds and keep production moving.
• Right-hand, metric fine compatibility: Optimized for right-hand metric fine threads, ensuring consistent measurements across common fasteners and fittings and simplifying inventory management on the shop floor.

This gauge supports efficient quality control by providing reliable, repeatable measurements that help prevent misfits and rework. With its robust construction and precise sizing, it enhances workflow, accelerates inspections, and helps you meet tight tolerances with confidence on every project.