The JBO Thread Ring Gauge (GO) is a precision inspection tool designed to verify external metric fine threads. It’s built for manufacturers, machine shops, quality teams, and assembly lines, helping you confirm that threaded components meet exact size and tolerance requirements. This GO gauge targets metric fine standards: M70 x 1.5, right-hand threads in the 4h tolerance class, enabling quick, reliable part validation.

Crafted from hardened steel for enduring performance, it resists wear in busy environments and maintains accuracy cycle after cycle. Its simple design makes it easy for technicians and inspectors to recognize conforming threads at a glance, supporting fast, consistent quality across production processes.

• Exact GO Check for Metric Fine Threads: Delivers precise pass/fail verification for external threads, including M70 x 1.5 right-hand with 4h tolerance, helping identify non-conforming parts at a glance.
• Hardened Steel Construction: Resists wear and deformation in busy production environments, preserving accuracy over many inspection cycles.
• Fast, User-Friendly Inspection: Enables quick conformity identification with straightforward handling, reducing inspection time and machine downtime.

By providing a dependable, easy-to-read GO gauge for external threads, this tool speeds inspections, reduces rework, and helps you deliver consistently measured parts—every batch, every shift. The rugged construction and precise fit deliver long-term value, increasing confidence in your quality control and downstream assembly workflows.