The JBO Thread Plug Gauge is a precision inspection tool engineered for metric fine threads. It targets M27 x 1.5 right-hand threads, making it ideal for manufacturers, machinists, and service technicians who need fast, reliable hole verification before assembly.

Durable construction and a Go/No-Go design enable quick, confident checks in busy workshops, reducing inspection time and helping prevent mismatches in threaded joints.

• Go/No-Go design for fast checks: Quickly confirm whether the hole thread is within tolerance, reducing inspection time and avoiding guesswork in assembly.
• Designed for M27 x 1.5 right-hand threads: Precisely sized to the metric fine-thread standard, ensuring accurate go/no-go results for this common specification.
• Hardened steel for durability: Built to resist wear from frequent use, maintaining accuracy and extending service life in demanding shop environments.

Using the JBO Thread Plug Gauge helps streamline quality checks, ensure consistent thread acceptance across parts, minimize rework, and protect downstream assembly quality. With reliable, repeatable results, you’ll keep production flowing and confidence high in every fit.