The JBO Thread Ring Gauge (NoGo) is a precision tool built for quick, reliable checks of external metric threads. Specifically designed for metric fine threads, it targets M13 x 1.5 with a right-hand orientation, making it ideal for quality control, machining, and assembly workflows. Whether you’re an engineer, a trainer, a shop floor technician, or a hobbyist, this gauge helps you confirm part conformity fast and with confidence.

Crafted from hardened steel, the gauge delivers durability that stands up to daily use in demanding environments. Its straightforward design supports easy, hassle-free inspections so you can identify non-conforming parts at a glance and keep production moving.

• NoGo Metric Fine Precision: Quickly verify external thread diameters for metric fine threads, enabling fast pass/fail decisions and reducing inspection time.
• Right-Hand M13 x 1.5 with 6g Tolerance: Specifically matched to standard M13 x 1.5 right-hand threads and 6g tolerance, ensuring accurate checks against common components and mating parts.
• Durable Hardened Steel Construction: Built to resist wear, maintaining measurement accuracy over many inspections in busy workshops.

Used correctly, this gauge streamlines quality control, minimizes rework, and supports consistent results across jobs. It helps you accelerate inspections, protect assembly accuracy, and maintain reliable performance from part receipt to final build.