Introducing the JBO Thread Ring Gauge (NoGo) – Metric Fine, Right Hand, 6g, M150 x 4. This precision ring gauge is designed for engineers, inspectors, machinists, and maintenance teams who need fast, reliable verification of external thread diameters and conformance with metric fine-thread standards. Crafted from hardened steel, it resists wear in demanding shop environments, delivering durable, repeatable measurements you can trust.

• Go/No-Go quick checks: Quickly verify external threads with a clear pass/fail result, speeding quality control and reducing rework by flagging out-of-tolerance parts in the moment.
• Hardened steel body: Built to withstand daily shop use, resist wear, and maintain accuracy over many inspections, delivering reliable performance.
• Metric Fine accuracy for M150 x 4, Right Hand: Precisely sized to the M150 x 4 metric fine thread standard, with the correct right-hand orientation to match typical fasteners, ensuring consistent, repeatable measurements.

With this gauge in your toolkit, you gain faster inspections, fewer defects, and greater confidence that threaded components will fit and function as intended. Its rugged construction supports long service life across shifts and operators, while its exact sizing aligns with industry standards to deliver dependable results and minimize downtime.