The JBO Thread Ring Gauge (GO) is a precision inspection tool designed to quickly verify external thread diameters on metric fine threads. It is ideal for machinists, quality-control engineers, and assembly teams, offering a reliable go/no-go check to confirm parts meet required standards.

Crafted from hardened steel for durability in busy workshops, this GO gauge is tailored for right-hand metric fine threads, specifically M5 x 0.25 with a 6g tolerance, delivering stable, repeatable results in demanding environments.

• Precise GO gauge for metric fine threads: Quickly verify external threads meet the M5 x 0.25, right-hand 6g specification with a single go/no-go check, speeding up your inspection process and reducing guesswork.
• Durable hardened steel construction: The rugged material resists wear and deformation, ensuring long-term accuracy even in high-volume production and harsh workshop conditions.
• User-friendly, quick-reference design: Clear engagement with the threads helps operators determine conformance at a glance, speeding setup and reducing inspection steps.

Using the JBO Thread Ring Gauge (GO) for metric fine threads helps you maintain consistent thread quality across parts and batches. It speeds inspections, reduces rework and downtime, and supports formal QA workflows with repeatable, trustworthy results. Built for durability and precise fit, this gauge is a dependable addition to any machine shop, QA lab, or assembly line handling M5 x 0.25 right-hand threads.