The 2494 - 22 M12™ cordless 2-tool Combo kit includes the M12™ 3/8 In. drill/driver and the M12™ 1/4 In. hex impact driver. The innovative M12™ cordless lithium-ion 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 REDLITHIUM ™, the M12™ cordless lithium-ion system offers unmatched power, speed, and tool belt portability.