The 2598-22 M12 FUEL 2-Tool Combo Kit is the Most Capable and Most Compact 12-Volt Hammer Drill Driver and Impact Driver Combo Kit on the market. Included is the M12 FUEL Hammer Drill Driver (2504-20), the Most Capable, Lightest Weight and Most Compact 12-Volt Hammer Drill Driver in the market. At only 6.6 and 2.8 lbs. of weight it is the best Hammer Drill Driver to use in compact spaces. It delivers the power to do a wide variety of applications at 1700 RPMs and 350 in./lbs. of torque. Also included, the M12 FUEL Hex Impact (2553-20), the Fastest Driving Speed, Most Compact with 4- Mode Drive Control Impact Driver in the market. At 3,300 RPM the impact drives screws over 20% faster than competitors.