*KeyFeatures *Semi-Auto De-Riveting for Efficiency: Our 16-inch rivet nut tool features a connecting rod semi-automatic de-riveting design. Just open and close 2-3 times, and it automatically releases the rivet. The 16-inch long handle provides optimal leverage, making it the most efficient and time-saving manual rivet gun. It boosts your work efficiency and makes riveting effortless. *Sturdy Material for Durability: The professional-grade rivnut tool kit with industrial quality is made from a high-strength alloy rivet setting rod and carbon steel handles that resist corrosion and deformation. The ergonomic rubber handle ensures a non-slip and comfortable grip, providing stable and robust support for your daily work or hobby projects. *13 Sizes of Mandrels and Rivet Nuts: Our rivet nut gun kit provides versatility with 13 pcs of mandrels and 186 pcs rivet nuts. The nuts include 20 pcs each for 6 sizes: M3, M4, 10-24, M5, M6, 1/4-20; 10 pcs each for 6 sizes: 8-32, 5/16-18, M8, 3/8-16, M10, M12; and 6 pcs for 1 size: 1/2-13. The 13 pcs mandrels sizes: M3, M4, 10-24, M5, M6, 1/4-20, 8-32, 5/16-18, M8, 3/8-16, M10, M12, 1/2-13. *Easy to Use: Our user-friendly nutsert tool kit requires no complicated operations. Just replace the appropriate mandrels and rivet nuts, and there's no need for any additional tools. Simply open and close the handle to complete the nut installation and de-riveting. Even first-time users can use it like professionals. *Versatile for Any Job and Surface: From workspaces to home projects, our rivet nut kit is suitable for DIY, manufacturing, and automotive repairs. It can be used to fix and rivet aluminum, steel, copper, and more. Say hello to high efficiency and bid farewell to limitations. ******************************************************************************************************* *Specifications Item Model Number: DY-8807 Maximum Working Stroke: 0.32" / 8 mm Rivet Nut Material: Q235 Product Size: 15.20" x 6.10" x 1.57" / 386 x 155 x 40 mm Product Weight: 7.5 lbs / 3.4 kg ******************************************************************************************************* *Pakcage Content 1 x Rivet Nut Tool 1 x User Manual 1 x Carrying Case 186 x Rivet Nuts 13 x Sets of Mandrels