This ATOMIC Compact Series 2-tool kit includes 1/2 in. hammer drill driver, 1/4 in. impact driver, charger, contractor bag, and (2) 20V MAX DEWALT POWERSTACK compact batteries. The DCD799 Hammer drill/driver is our shortest hammer drill at 6.49 in. (tool head length only). The DCF809 impact driver features a high-performance brushless motor that delivers 1700 in-lbs. of max torque.