Kit includes 20V cordless 1/2 In. drill/driver and 1/4 In. hex impact driver， PWRCore 20 2.0 Ah lithium-ion battery， and 20V charger. The drill/driver tightens screws， assembles furniture and drills through wood， plastic， or metal surfaces. Features high/low speeds of 0-420/0-1450 rpm (revolutions per minute) and 177 In./Lbs. torque. 7-7/16 inches in length. The impact driver is ideal for heavy-duty work like driving large fasteners through dense wood， and loosening stubborn， over-torqued screws with 1100 In./Lb. torque， 0-2500 rpm no load speed， and 0-3200 IPM (impacts per minute) impact rate. 6 inches in length. The PRWCore 20 lithium battery has an innovative temperature management system to keep the battery cool.