Make your riveting jobs more efficient with this rivet nut gun tool kit. The rivet gun is made of sturdy and solid carbon steel for enhanced durability. A nicely-designed knob between handles offers maximum convenience. The set is equipped with seven pieces interchangeable mandrels, including M3, M4, M5, M6, M8, M10, M12 and 10 pieces of each of the rivet nuts. Thanks to its innovative tool-less and quick-change head design, you can easily change the mandrels and nose pieces. The hand rivet nut tool set is ideal for a wide range of applications, such as bicycle maintenance and repairs, and other modification projects.