REDLINK™ Intelligence - provides optimized performance and overload protection using total system communication between tool, battery and chargerProprietary 2-mode DRIVE CONTROL™ - two speed / torque modes allow class-leading control for greater application versatilityMilwaukee designed ed impact mechanism - delivers maximum power and application speed for greater efficiency on the jobBuilt-in LED light illuminates work surface for dim work areasMilwaukee 4-Pole frameless motor - features a robust design for longer life, more power and more runtime than any brushed competitor