The 2899-22 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 runs time and more power.