The Dremel 4300-9/64 Variable Speed Rotary Tool Kit with Flex is a powerful corded electric tool with a maximum speed of 35,000 RPM. It features a 3-jaw chuck for easy bit changes and a keyless chuck type. This multi-tool from Dremel comes in a sleek black color and includes a case for convenient storage. With a voltage of 120V and a brushed motor type, this rotary tool kit is perfect for a wide range of home and workshop projects.