The JBO Thread Ring Gauge (GO) - BSW - Right Hand - Medium Class - 9/16 x 12 is a GO ring gauge designed to check external threads on fasteners and threaded components. It helps QC teams and machinists quickly verify that a part’s thread diameter meets the required standard, reducing guesswork during assembly and inspection.

Manufactured from hardened steel for durability, it delivers reliable performance in busy workshops and production lines. The tool’s simple, hand-friendly design — with a knurled outer edge for secure grip — makes it easy to perform accurate GO checks on the 9/16 x 12 BSW right-hand thread in medium class.

• Precise GO gauge for 9/16 x 12 BSW threads: Enables fast, reliable checks of external threads to confirm minimum diameter and adherence to specifications.
• Hardened steel construction: Delivers long service life and wear resistance in demanding environments, reducing replacement and downtime.
• Ergonomic, knurled design for right-hand threads: Easy handling and quick GO checks, improving inspection speed and confidence on the shop floor.

Using this gauge streamlines quality control, helps ensure consistent thread fit across parts, and supports efficient workflows from inspection through final assembly.