The 2497-22 M12™ Cordless 2-Tool Combo Kit includes the M12™ 3/8" Hammer Drill/Driver and the M12™ 1/4" Hex Impact Driver. The innovative M12™ cordless system is designed to deliver the power and torque required for professional applications, in a size that reaches the tightest and toughest places. Powered by RED LITHIUM™, the M12™ cordless system offers unmatched power, speed, and tool belt portability.