The RotoZip SS560VSC RotoSaw+ Variable Speed Spiral Saw is a corded electric rotary tool designed for various cutting and drilling tasks. With a 1 1/4 inch chuck size and keyed chuck type, this tool is suitable for a range of applications. The variable speed feature allows for greater control and precision, making it a versatile addition to any workshop or tool kit. This model does not come with a battery but operates on 120V power source, providing reliable and consistent performance for the user.