Professional rivet nut adapter kit: the rivet nut adapter can be used with standard cordless drills and screwdrivers. This rivet nut attachment turns any drill into a powerful rivet tool, with which you can then easily work rivet nuts in sizes M3 to M10. Accessories 7 pieces interchangeable mandrels: the rivet nut attachment kit contains 7 interchangeable mandrels (2 x M3, M4, M5, M6, M8, M10), with mounting keys for pull rods included. High-quality material: extra robust design made of steel, the main body and screw are made of 35CrMo, and the shell is made of aluminium alloy, it is versatile. It is suitable for riveting rivet nuts made of various materials such as aluminium, copper, iron and stainless steel from M3-M10. Easy to use: the attachment can be used with standard drills thanks to the 1/4 inch hex drive, and suitable for rivet nuts made of aluminium, steel and stainless steel; Note: to ensure the maximum life of the tool, the maximum speed of 240 rpm prescribed for this device must never be exceeded during operation With box and versatile: the rivet nut adapter set for drill sleeves comes with a sturdy carrying case for easy storage and protection. They are suitable for the installation and maintenance of buildings, cars, elevators, instruments and furniture.