The JBO Thread Plug Gauge (GO) in Metric Fine LH M64 x 1.5 is a go/no-go inspection tool designed for engineers, machinists, and quality teams. It provides a fast, reliable reference to verify threaded holes against the exact metric fine left-hand thread specifications, helping ensure parts meet design intent and manufacturing standards.

• Exact metric fine left-hand thread size (M64 x 1.5) with 6H tolerance: Delivers precise, repeatable go checks that confirm holes match the specified LH metric fine profile, reducing guesswork and rework.
• Go gauge for fast, reliable hole verification: Enables quick acceptance or rejection of a threaded hole, speeding inspections and supporting consistent results across operators and shifts.
• Hardened steel construction for durability: Built to withstand daily use in busy workshops, providing long-lasting performance and dependable measurements over time.

Using the JBO Thread Plug Gauge (GO) improves inspection efficiency, helps prevent misfits in threaded assemblies, and enhances overall quality control in machining, assembly, and maintenance workflows.