The M18 FUEL ¼” Hex Impact Driver is the Most POWERFUL and FASTEST DRIVING impact driver, featuring ULTIMATE TRIGGER CONTROL. Our Brushless motor delivers unmatched power for a full range of capabilities to complete the widest variety of applications. Increase productivity on the jobsite with the fastest driving speed of any impact driver without sacrificing power or control. intelligence delivers ULTIMATE TRIGGER CONTROL by providing smooth acceleration for small fasteners to prevent stripping of screws or damaging of materials.