The JBO Thread Plug Gauge (NoGo) is a precise inspection tool designed to verify metric coarse threads in threaded holes. Sized M64 x 6 with a right-hand orientation, it provides dependable go/no-go checks that help ensure every part meets the required fit and function. Ideal for quality teams, engineers, machinists, and maintenance crews, this gauge streamlines inspection tasks and supports consistent threading standards across projects.

• Precise M64 x 6 metric coarse NoGo gauge: Enables quick, reliable pass/fail checks against the 6H class to confirm threaded holes are within spec, reducing guesswork and rework in production.
• Hardened steel construction: Built to withstand demanding shop environments, delivering long service life and stable measurements even after repeated use.
• Ergonomic knurled grip for secure handling: Provides a comfortable, slip-resistant hold that improves control and accuracy when performing inspections in tight or awkward spaces.

With its robust design and straightforward operation, the JBO Thread Plug Gauge (NoGo) helps you accelerate quality control workflows, prevent mismatched assemblies, and achieve dependable, repeatable results across every inspection cycle.