JBO Thread Plug Gauge is a precision inspection tool designed for metric fine threads. Specifically tailored for M23 x 1 left-hand threads, its Go/No-Go design lets you quickly verify threaded holes for proper fit. Built with hardened steel and a 6H tolerance, it delivers durable, repeatable checks in demanding workshop conditions.

• Go/No-Go design for fast, reliable hole checks: Quickly determine whether a threaded hole meets specification, reducing guesswork and rework on the bench.
• Left-hand metric fine thread compatibility (M23 x 1) with 6H tolerance: Precisely tests the correct thread form and size to prevent mismatched assemblies.
• Hardened steel construction with knurled grip for durability: Built to withstand daily professional use, resisting wear while offering a secure, comfortable grip.

Used correctly, the JBO Thread Plug Gauge speeds up setup, reduces downtime, and delivers dependable go/no-go results for high-stakes assemblies. Its rugged construction and comfortable knurled grip keep inspections accurate even after long shifts, making it a reliable addition to any metalworking or maintenance toolkit.