The M18 FUEL SURGE 1/4 In. Hex Hydraulic Driver is the quietest cordless fastening solution on the market with hearing protection requirements below OSHA (Occupational Safety and Health Administration) standards (in most common applications). With the FLUID-DRIVE Hydraulic Powertrain， users will experience up to 50% quieter operation， 3 times less vibration for smoother operation， and faster driving speeds compared to standard impacts. The POWERSTATE brushless motor delivers constant power output to drive screws faster. 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. REDLINK PLUS Electronic Intelligence enables advanced communication between batteries and tools allowing for unmatched levels of performance， protection， and productivity. Kit includes (2) M18 REDLITHIUM XC5.0 Extended Capacity Battery Pack， M18 & M12 Multi-Voltage Charger， Belt Clip， Bit Holder， Carrying Case.