The Dewalt 20vmax XR DCF887 is a cordless impact driver that comes with a 5 Ah Lithium-Ion battery and charger pack. It has a 1/4 inch chuck size and operates on a 20V voltage. The model is designed by DEWALT and is ideal for use in home and garden, workshop equipment, and power tools. The set includes a battery charger, making it convenient for users to recharge the battery when needed.