The JBO Thread Plug Gauge is a precision tool designed for metric fine threads. This right-hand Go/No-Go gauge is specifically configured for M15 x 0.75 holes with 6H tolerance, making it ideal for engineers, machinists, buyers, and maintenance teams who rely on accurate thread checks. Built from hardened steel, it offers long life and dependable performance in demanding shop environments.

• Go/No-Go quick thread check: Quickly verify hole acceptability with clear pass/fail limits, reducing inspection time and guesswork during setup and production.
• Right-hand, 6H compatibility: Designed for standard metric fine threads, ensuring consistent mating with the intended thread form and reliable results across parts.
• Hardened steel durability: Rugged construction delivers wear resistance and repeatable measurements, even with frequent use and harsh conditions.

Using this gauge helps streamline workflows by delivering fast, dependable thread verification, cutting downtime, and improving first-pass assembly results. It gives technicians and buyers confidence that threaded holes will accept the mating part, supporting accurate manufacturing, maintenance, and quality assurance across applications.