This robust rivet nut tool kit is an essential addition to any home workshop or professional toolbox. The kit includes a durable steel riveter gun with comfortable, non-slip rubber handles and a comprehensive set of 85 threaded rivet nut mandrels in sizes M3, M4, M5, M6, and M8. Ideal for creating strong, reliable threads in thin-walled or various materials, this versatile tool is perfect for a wide range of applications. Use it for automotive repairs on cars and trailers, furniture assembly, boat building, and maintaining farm equipment or other tools. The built-in depth stop knob helps prevent over-tightening and protects threads from damage during installation. Designed for ease of use, the ergonomic plier-style gun ensures comfortable operation, and the included wrench allows for easy adjustment of the mandrels. This universal kit is your go-to solution for electrical assembly, metal fabrication, channel laying, and countless other DIY or professional projects.