The JBO Thread Plug Gauge is a precision inspection tool designed for metric fine threads, specifically for left-hand internal threads with M32 x 1.5 pitch. It’s built for machinists, inspectors, and assembly teams who need quick, dependable hole verification.

With a Go/No-Go design, it delivers a fast pass/fail check to confirm hole tolerance, helping you avoid mismatches and reduce setup time in quality control and final assembly.

• Go/No-Go quick verification: Instantly determine if the M32 x 1.5 left-hand threaded hole meets tolerance, enabling fast pass/fail checks that keep production moving and reduce rework.
• Hardened steel body with knurled grip: Durable construction built to withstand daily workshop use, while the knurled surface provides a secure, precise grip for reliable measurements.
• 6H tolerance class for consistent results: Precision engineered to the metric fine-thread standard, delivering repeatable, dependable checks across parts and jobs.

This gauge supports efficient quality control by delivering reliable, repeatable hole verification for metric fine threads. Its robust construction and straightforward operation help shorten inspection cycles, minimize downtime, and ensure confident, consistent fits in your assemblies.