The 2999 - 22 M18 FUEL 2-tool Combo kit is the highest performing hammer drill and hydraulic driver Combo kit on the market. Included is the M18 FUEL SURGE 1/4 in. Hex hydraulic driver (2760-20), the quietest hydraulic driver on the market. The 2760-20 features proprietary fluid-drive hydraulic powertrain and 4-mode drive control. Also included is the M18 FUEL 1/2 in. hammer drill (2804-20) delivering the industry's most powerful drill delivering up to 60% more power, is up to 1.5 in. shorter and is up to 2X faster under heavy load. The POWERSTATE brushless motor delivers 1,200 in-lbs of torque and 2,000 RPMs providing fast drilling through demanding applications. At 6.9 in. in length this is the most compact drill in its class giving better access into tight spaces and reducing fatigue. M18 FUEL features the most advanced cordless technology in the industry; a POWERSTATE brushless motor, REDLINK Plus intelligence and REDLITHIUM battery technology, resulting in longer motor life, longer run time and more power.