Tough 8-Volt Lithium Ion Rotary Tool with 40 Accessories has the portability and functionality you need in a Battery operated rotary tool to give you more versatility on more home improvement projects than you could have possibly imagined. This cordless speed rotary tool device has 5,000 - 25,000 RPM and comes with a 40-piece accessory kit to cover your needs. Whether it is to clean, cut, sharpen, grind, engrave, sand, polish or carve, you will be prepared to take it all on. A diamond-point bit, sanding bands, a grinding wheel and polishing wheel, a sanding drum, cut-off wheels, wire and nylon brushes and more are just a taste of everything included.