M18™ Cordless 2-Tool Hammer & Impact Driver Combo Kit. Includes the M18™ 1/2" Hammer Drill Driver (2602-20) with 4-Pole frameless motor, that delivers 500 in.-lbs of torque and up to 1,800 RPM. Only 7-3/4" long, this drill driver allows access to the tightest work spaces. An all-metal gear case and 1/2" metal chuck. The M18™ 1/4" Hex Compact Impact Driver (2650-20) features 4-Pole frameless motor and optimized impact mechanism that delivers up to 2,750 RPM, 3,450 IPM and 1,500 in.-lbs. of fastening torque. The M18™ Cordless System's patented technologies and electronics, innovative motor design, and superior ergonomics provide the most efficient blend of power, weight and performance in the industry. Powered by RED LITHIUM™ the M18™ cordless system delivers more torque, more power, and longer run-time than the competition.