EASY TO USEThe rivet nut mandrel can be easily removed by hand to change or maintain the rivet mandrel easily without the need for any extra tool, smooth your project and save your time STRONG AND DURABLE The rivet nut tool is made of heavy-gauge, heat-treated carbon steel, and the black phosphate coating protects against corrosion. The U-section of the arm is very reliable to avoid any bending. Thanks to the designed structure and tough material, it is strong and durable enough for a long service life COMPLETE ACCESSORIES- Equipped with 7PCS interchangeable chucks (Metric M3 M4 M5 M6 M8 M10 M12) and 70pcs rivet nuts . Addendum: The M8 accessory box is empty because the M8 accessories have been installed on the rivet nut clamp WIDE APPLICATIONS- Provide a custom fastening solution for wide riveting applications, such as paneling bodywork, bicycle mounts, metal panels, furniture and decorations, especially for off-road / Jeep modifications inches (41) and the ergonomic handles with double compound hinges maximize leverage, it can save more energy than normal 13 inch rivet nut tools. Rubberized handle with ergonomic curved design is non-slip.