The Rapid RP160 makes it easy to anchor these nuts to sheet metal and other materials so you can then screw a bolt into the threaded nut. The tool functions as an adapter and attaches to a drill or screwdriver just like a standard drill bit or bit. The machine must have adjustable torque. The Rapid RP160 is particularly effective for large projects that require a large number of rivet nuts. The tool features a sturdy, aluminum monocoque outer casing, and its easy-grip surface allows for safe and precise operation. All mechanical parts are made of hardened steel. In addition, an installation wrench is included to facilitate maintenance. The tool is designed for M4, M5, M6, and M8 rivet nuts. The chuck and bits are included. For best results, you should use a drill or screwdriver with a battery capacity of at least 18 V.