Sold as one unit. (1 unit = each.) 18 volts, 0-550 RPMs. Variable speed, reversible. Includes: 1 - 18V battery, 1 - hour quick charger and case. 2 chucks allow user to go from drilling to driving by simply rotating the chucks. Boxed . Manufacturer number: DD-1R. SKU #: 2160760. Country of origin: China. Distributed by Allstar Product Group.