The JBO Thread Plug Gauge is a precision tool for inspecting metric coarse threaded holes. It’s ideal for machinists, inspectors, engineers, and maintenance teams who need fast, reliable go/no-go checks to confirm threads match specification.

Designed for right-hand M11 x 1.5 coarse threads with a 6H tolerance, this plug gauge uses a straightforward Go/No-Go design to verify fitment at a glance, helping you reduce guesswork and rework in assembly and quality control.

• Go/No-Go inspection for fast, at-a-glance verification: Instantly confirms whether the hole meets the required tolerance, reducing inspection time and preventing misfits in assembly.
• Precisely matched to M11 x 1.5 coarse threads: Ensures reliable checks for this common metric size, supporting consistent fit and performance across parts.
• Hardened steel for lasting durability: Withstands daily use in busy shop environments, delivering long tool life and repeatable results even after many cycles.

With the JBO Thread Plug Gauge, you gain faster, more reliable quality control, fewer rework cycles, and confidence that threaded holes will assemble correctly with mating parts. Its robust construction and precise go/no-go function simplify workflow—from incoming inspection to final assembly—so your team can keep production moving smoothly and consistently.