The JBO Ring Gauge (GO) – Metric Fine is a precision tool designed to quickly verify external thread diameters. It’s ideal for machinists, inspectors, and quality teams who need reliable, on-site confirmation that threads meet exact standards, including metric fine right-hand threads at M80 x 1.5 (6h). Built from hardened steel, it delivers lasting durability in busy workshop environments.

• Precise Go Gauge for External Threads: Quickly verify external threads match the M80 x 1.5 metric fine, right-hand standard, enabling fast, accurate inspections.
• Hardened Steel Construction: Built from hardened steel, it resists wear and keeps its accuracy through heavy use in busy inspection environments.
• Easy Identification for Quality Control: Designed to clearly indicate when a part conforms, helping reduce rework and speed up quality checks.

Used in go/no-go checks, this gauge helps you confirm acceptable threads at a glance, cut inspection time, and reduce rework. Its durability and reliable dimensions keep your quality control consistent across parts and batches, improving overall workflow and confidence in every threaded connection.