The JBO Thread Ring Gauge (GO) is a precision tool designed to verify external thread diameters with speed and confidence. It is ideal for machinists, inspectors, quality teams, and shop floor operators who need to confirm that components meet metric fine thread standards, especially M19 x 1.5 right-hand threads.

Crafted for rugged use, this GO gauge leverages a hardened steel construction to deliver lasting performance in busy production environments. Its straightforward design makes it easy to perform quick pass/fail inspections, helping you maintain consistent quality across batches and reduce rework.

• Go/No-Go conformance checks: Enables quick, at-a-glance verification of external thread diameters to determine if parts meet the M19 x 1.5 metric fine, right-hand thread specifications.
• Hardened steel construction: Built for durability and wear resistance, standing up to daily use in demanding workshops and long service life.
• Metric fine, right-hand thread compatibility: Precisely sized for common metric fine threads, ensuring accurate measurements and repeatable results across parts and assemblies.

Using the JBO Thread Ring Gauge streamlines your inspection process, reduces downtime, and supports consistent, high-quality outcomes. By providing reliable go/no-go checks in a compact, dependable tool, it helps you accelerate quality assurance, minimize guesswork on threaded components, and confidently meet standards in manufacturing, engineering, and assembly workflows.