The M18™ FUEL™ 2-tool combo kit is the highest performing hammer drill and hydraulic driver combo kit on the market. Also 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. M18™ FUEL™ features the most advanced cordless technology available A POWERSTATE™ brushless motor Redlink plus electronic intelligence and REDLITHIUM battery technology, resulting in longer motor life, more runtime and more power.