The 2491-24 M12™ cordless LITHIUM-ION 4-tool combo kit includes the Screwdriver (2401-20), 1/4" Hex Impact Driver (2450-20), Hackzall™ Recip Saw (2420-20), and Work Light (49-24-0145). 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 LITHIUM-ION system offers unmatched power, speed, and tool belt portability.