The JBO Thread Plug Gauge (GO) – Metric Fine – Right Hand – 4H – M45 x 1.5 is a precision inspection tool designed to verify threaded holes against metric fine specifications. It’s ideal for engineers, machinists, quality staff, and maintenance teams who need fast, reliable hole checks in manufacturing, assembly, and repair settings.

Manufactured from hardened steel, this GO gauge resists wear in demanding environments, delivering long service life and consistent results. Its right-hand orientation and exact M45 x 1.5 size with 4H tolerance ensure you’re testing against a standard you can trust, reducing guesswork and rework.

• Fast, go-side hole verification: Quickly confirm that a threaded hole accepts the GO gauge, enabling fast pass/fail decisions and reducing inspection time.
• Metric fine threading accuracy (M45 x 1.5, 4H, right-hand): Precisely sized to the specified thread form and tolerance so measurements are reliable and repeatable across parts.
• Hardened steel durability: Built to withstand heavy use in busy workshops, resisting wear to provide long-lasting performance and consistent results.

Used for quality control, this plug gauge helps streamline inspections, minimize downtime, and improve process reliability by ensuring threaded holes meet exact standards before assembly. With robust construction and precise dimensions, you can trust this gauge to support accurate, repeatable measurements across jobs and shifts.