The JBO Thread Plug Gauge is a precision inspection tool designed for metric coarse threads. This Go/No-Go plug gauge helps technicians quickly verify threaded holes, ensuring components fit and function as intended. Sized for left-hand applications with M27 x 3 threads and a 6H tolerance, it’s built from hardened steel to withstand daily use in demanding shop environments.

• Go/No-Go verification for fast, reliable hole checks: Quickly determine whether a threaded hole meets tolerance by confirming a smooth go fit and a precise no-go condition, reducing guesswork and rework.
• Hardened steel construction for lasting durability: Designed to resist wear and maintain accuracy through repeated use, delivering dependable performance over time.
• Left-hand M27 x 3 coarse-thread compatibility (6H): Precisely matched for metric coarse threads in left-hand configurations, helping ensure accurate hole checks and consistent results in specialized assemblies.

Use the JBO Thread Plug Gauge to streamline quality control, shorten setup times, and improve consistency across parts. Its straightforward Go/No-Go approach minimizes downtime and helps catch improper holes early, supporting higher first-pass yields and reliable performance in both prototyping and production environments.