RYOBI 18V ONE+ introduces lithium-ion performance at Ni-Cd prices. This kit is powered by new lithium-ion batteries, the very best value in lithium-ion performance. They hold a charge 4X longer, offer up to 20% more runtime and are 45% lighter weight than Ni-Cd batteries. When the heavy driving tasks are at hand, reach for this impact driver. You will be amazed at the power and control when driving long and large screws or bolts. The powerful motor delivers 1,500 in. lbs. of torque that loosens bolts as easily as it fastens them. It features the exclusive MagTray and on-board bit storage, which allow convenient placement of bits and screws.