Introducing the Dremel 7700 Cordless 7.2V 2 Speed Rotary Tool & Charger, a powerful and versatile addition to any tool collection. This tool is designed with a keyed chuck type and runs on a Nickel-Cadmium (NiCd) battery, which is included with the purchase. With a voltage of 7.2V and a variety of pieces included, this tool is perfect for a range of applications in rotary tools, power tools, and home improvement projects. The Dremel 7700 is a reliable and durable option for anyone in need of a high-quality tool for their workshop or home.