The JBO Thread Plug Gauge (NoGo) is a precision tool designed for verifying threaded holes with metric fine threads. It enables inspectors, machinists, and assembly technicians to perform fast, reliable NoGo checks to confirm holes stay within specification.

Designed for right-hand metric fine threads (6H) at M150 x 4, this gauge combines exact dimensions with durable construction. Crafted from hardened steel with a wear-resistant finish, it stands up to daily use in demanding shop environments and helps maintain consistent quality across parts and assemblies.

• Accurate NoGo verification for metric fine threads (M150 x 4, 6H): Quickly confirms threaded holes are within the specified maximum material condition, reducing guesswork and rework.
• Durable hardened steel construction: Offers long life and wear resistance in busy workshops, ensuring reliable measurements over time.
• Ergonomic, right‑hand design with knurled grip: Provides comfortable handling, fast alignment, and repeatable measurements even in tight spaces.

Using the JBO NoGo plug gauge streamlines quality checks, speeds up inspection cycles, and helps you lock in consistent hole sizes across parts and assemblies. Its robust build and precise dimensions give you confidence that components meet spec on first pass, reducing downtime and improving overall process reliability.