This is a vintage Craftsman corded rotary tool with a maximum speed of 30,000 RPM and a minimum speed of 5,000 RPM. It has a length of 8 inches, a weight of 1.25 lbs, and a width of 2 inches. The tool is powered by a corded electric source with a voltage of 115 V. It features a keyless chuck and does not require any batteries. The chuck type is keyless and the color is black. The model number is 572.25151 and it is made in the United States.