The M18 FUEL SURGE 1/4 Hex Hydraulic Driver is the quietest cordless fastening solution on the market. With Milwaukee's new FLUID-DRIVE Hydraulic Powertrain, users will experience quieter operation, 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. For use with REDLITHIUM-ION Batteries (sold separately). 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. - Milwaukee POWERSTATE Brushless Motor provides more power, more run-time, and longer life. - REDLINK PLUS Electronic Intelligence enables advanced communication between your batteries and tools, allowing for unmatched levels of performance, protection, and productivity. - FLUID-DRIVE hydraulic powertrain reduces metal on metal contact within the tool, delivering quieter operation, smoother performance, and increased durability over a standard impact. - Milwaukee DRIVE CONTROL allows the user to shift into four speeds and torque settings to maximise application versatility.1/4 Hex chuck for easy bit changes.77d - B(A) noise level. *Battery and charger not included