The JBO Thread Ring Gauge (GO) - Metric Fine is a compact go/no-go tool designed to verify external thread diameters. Built for right-hand threads with M34 x 1 metric fine pitch, it’s a reliable choice for engineers, machinists, quality inspectors, and maintenance professionals who need fast, unambiguous conformance checks.

Designed with a knurled outer edge for a secure grip, this gauge stays steady in oily or gloved hands while you perform quick GO checks. Crafted from hardened steel, it stands up to daily use in demanding shop environments, delivering long-lasting durability and dependable performance.

• Precise GO gauge for metric fine threads: Quickly confirm whether external threads meet the M34 x 1 specification with a simple pass/fail check, speeding up inspections and reducing guesswork.
• Durable hardened steel construction: Resists wear and maintains accuracy over time, providing reliable performance in busy workshop settings.
• Right-hand, 6h standard design: Specifically configured for common right-hand metric fine threads with a 6h tolerance, delivering consistent, repeatable results and easy setup in QC workflows.

With the JBO Thread Ring Gauge, you gain a focused, practical tool that speeds up inspections, reduces rework, and ensures threaded components meet exact standards. Its sturdy construction and straightforward go/no-go operation support reliable quality control and smoother production timelines from inspection to assembly.