Milwaukee's new FLUID-DRIVE™ Hydraulic Powertrain is 50% quieter with 3X less vibration for smoother operation, and faster driving speeds compared to standard impacts. The POWERSTATE™ Brushless Motor delivers up to 0-3,000 RPM with constant power output to drive screws faster. REDLINK PLUS™ Intelligence is the most advanced electronic system on the market, preventing damage to the tool and battery caused by overloading or overheating. The 4-Mode DRIVE CONTROL™ provides greater control over output speed and power for greater versatility. Self-Tapping Screw Mode is designed to reduce walking when starting self-tapping screws as well as reduce overdriving, breaking and stripping out screws. Kit includes: M18 FUEL™ SURGE™ 1/4" Hex Hydraulic Driver, (2) M18™ REDLITHIUM™ XC5.0 Extended Capacity Battery Pack, M18™ & M12™ multi-voltage charger, bit holder, carrying case, and belt clip.