The JBO Thread Plug Gauge is a precision tool crafted for metric fine threads, designed to help engineers, machinists, inspectors, and assembly teams quickly verify threaded holes for a perfect fit. This Go/No-Go gauge is built for right-hand M20 x 1.5 applications in the 6G tolerance class, and it features hardened steel construction for durability in demanding shop environments.

• Go/No-Go design for fast tolerance checks: Quickly determine whether a threaded hole falls within spec—Go confirms acceptable engagement while No-Go flags out-of-tolerance parts, reducing guesswork and rework.
• Metric fine threading compatibility (M20 x 1.5, 6G): Specifically sized for metric fine threads, ensuring reliable, repeatable testing of holes and components that require precise engagement.
• Durable, ergonomic construction: Hardened steel delivers long life and wear resistance, while the knurled body provides a secure grip for precise handling, even with gloves.

By delivering fast, dependable checks, the JBO Thread Plug Gauge helps streamline quality control, shorten setup times, and improve consistency across production runs. Its robust build is designed for heavy-use environments, making it a reliable staple in machine shops, fabrication floors, and maintenance workshops.