Professional rivet nut adapter kit: with a hexagonal thumb ladder, the adapter can be used with standard cordless drills and screwdrivers, or instead of the drill, a 3/8 socket wrench can also be used to become a powerful rivet plier, then you can easily work with M3 to M8 rivet nuts. Labour-saving and sustainable: the drill adapter kit comes with a sturdy handle for easy protection. The high-quality TPR coated handles are non-slip and provide comfort. Interchangeable 5 type mandrels and high efficiency: rivet nut attachment comes with 5 interchangeable mandrels (M3, M4, M5, M6, M8). Simply unscrew the head cover, replace the appropriate mandrel and screw it back on. Nuts suitable for different materials: rivet nut attachment is suitable for rivet nuts made of aluminium, zinc alloy, stainless steel, etc. For rivet nuts made of aluminium and stainless steel, you need a cordless drill with 12 V or higher voltage. (All drills must be equipped with a torque limiting coupling). Easy to carry and versatile: the electric drill adapter kit comes with a sturdy carry bag for easy protection and storage of the drill adapter and mandrels, making it easy to carry. Widely used for installation and maintenance in buildings, cars, elevators, instruments and furniture.