Milwaukee 2494-22 Two-Tool M12 Drill/Driver Combo Kit, Battery Included | The 2494-22 M12 cordless two-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.