Milwaukee M18 18V 2-Speed 1/4-Inch Hex Impact Driver (2657-20) (Tool Only - Battery and Charger Not Included) Milwaukee 4-Pole Frameless Motor: Features a robust design for longer life, more power and more runtime than any brushed competitor. 1/4-Inch Hex Quick-Connect Chuck. REDLINK Intelligence: Provides optimized performance and overload protection using total system communication between tool, battery and charger Milwaukee designed Impact Mechanism: Delivers maximum power and application speed for greater efficiency on the job. Proprietary 2-Mode DRIVE CONTROL: Two speed / torque modes allow class-leading control for greater application versatility. Includes one (1) 2657-20 tool only. Battery, charger and all accessories must be purchased separately.