The JBO Thread Plug Gauge (GO) — Metric Fine, Right Hand, 6H, M100 x 6 — is a precision inspection tool designed to verify threaded holes quickly and reliably. It’s ideal for engineers, machinists, quality teams, and assembly operators who need fast, go/no-go checks to confirm holes meet exact size and tolerance requirements.

Built from hardened steel for durability, this GO gauge delivers consistent performance in demanding shop environments. Its simple, robust design supports repeatable inspections, helping you reduce rework and keep production moving smoothly.

• Precise metric fine-thread GO gauge (M100 x 6, 6H): Verifies threaded holes to the exact metric fine standard with a reliable go check, enabling quick decisions and reducing guesswork in quality control.
• Ergonomic knurled grip for easy handling: The textured surface provides a secure, comfortable grip and smooth insertion into holes, even in tight or cluttered workspaces.
• Hardened steel construction for lasting durability: Built to resist wear and maintain dimensional stability through frequent use on busy production lines.

By delivering fast, repeatable checks, the JBO GO gauge helps streamline inspection workflows, reduce downtime, and improve accuracy across parts and assemblies. The combination of precise sizing, right-hand orientation, and rugged construction means you can rely on consistent results today and as demand grows.