The JBO Thread Plug Gauge (GO) – Metric Coarse, Right Hand, 6H, M45 x 4.5, is a purpose-built tool for quickly verifying threaded holes meet the required metric coarse standard. Whether you’re in quality control, manufacturing, or precision engineering, this GO gauge helps you confirm proper fit with confidence.

Built from hardened steel for durability, it resists wear in busy workshop environments and maintains accurate measurements over time. Its straightforward design and precise sizing support reliable inspections, reducing guesswork and ensuring seamless assembly of metric coarse threaded connections.

• Go gauge for metric coarse threads (M45 x 4.5, right-hand, 6H): Provides quick, pass/fail verification to ensure holes meet the specified standard, accelerating quality checks and assembly readiness.
• Durable hardened steel construction: Delivers long service life in demanding environments, resisting wear and preserving accuracy across many inspections.
• User-friendly inspection design: Supports straightforward, repeatable measurements with minimal setup, helping teams produce consistent results in quality control and precision engineering.

This gauge helps you speed up inspections, minimize guesswork in thread acceptance, and ensure consistent, reliable thread engagement across components. Its hardened steel build stands up to daily use, while the metric coarse M45 x 4.5 size and 6H class deliver dependable results in quality control and precision assembly.