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. Batteries stored on the IntelliPort™ charger are conditioned for peak performance. The drill features a ½ inch single sleeve, keyless chuck with automatic spindle lock for easy bit changes. The drill/driver also features a 2-speed gear box and 24 position clutch to match your drilling and driving needs. The impact driver delivers 1,600 in-lbs of torque for the most demanding applications, and features a belt clip that mounts to both sides for user convenience.