The 2691-22 M18™ cordless two-tool combo kit includes the M18™ compact driver and the M18™ 1/4 in hex impact driver. The M18™ cordless Lithium-Ion system's patented technologies and electronics, innovative motor design and great 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.