The (2694-22) M18™ cordless lithium-ion 2-tool Combo kit includes the 1/2 in. hammer drill / driver (2602-20) and SAWZALL® Reciprocating Saw (2621-20). The M18™ cordless lithium-ion system's patented technologies and electronics, innovative motor design, and superior ergonomics provide the most efficient blend of power, weight and performance in the industry. Powered by RED LITHIUM™, the M18™ cordless lithium-ion system delivers more torque, more power, and longer run-time than the competition.