The 2494-22 M12 Cordless 2-Tool Combo Kit includes the M12 3/8 in. Drill/Driver and the M12 1/4" Hex Impact Driver. The M12 cordless system is designed to deliver power and torque for professional applications, in a size designed for tight and hard to reach places. Powered by REDLITHIUM the M12 cordless LITHIUM-ION system offers unmatched power, speed, and tool belt portability.