The JBO Thread Ring Gauge (NoGo) – Metric Fine, Right Hand, 4h, M17 x 0.75 is a precision inspection tool for verifying external thread diameters on fasteners, fittings, and machined components. Designed for engineers, machinists, quality teams, and even dedicated hobbyists, it enables quick, confident pass/fail checks to confirm adherence to the M17 x 0.75 metric fine thread standard.

Constructed from hardened steel, this NoGo gauge resists wear in busy workshops and maintains its accuracy through repeated use. Its robust design supports reliable performance in daily quality control tasks, even in demanding environments.

• Fast NoGo verification: Quickly determine if a part exceeds the maximum permitted diameter, speeding up inspections and reducing guesswork.
• Metric fine compatibility: Precisely matched to M17 x 0.75 thread size with 4h class, ensuring accurate engagement and repeatable pass/fail results.
• Durable hardened steel construction: Built to withstand daily use in busy shops, delivering long-lasting accuracy and consistent performance across thousands of checks.

This gauge helps streamline quality control, minimize rework, and keep assemblies moving smoothly. By delivering clear, reliable results, it supports better part qualification, tighter process control, and confidence across manufacturing, maintenance, and fabrication tasks.