DEWALT DCF682N1 8V MAX Gyroscopic Inline Screwdriver Motion activation which allows for driving or reversing fasteners by twisting the tool left or right Motion activated variable speed of 0-430 rpm Lighted illumination in confined areas. Battery State of Charge display on the tool 1/4 inches hex allows for quick screwdriver bit change and holds 1 inch bit tips 8V MAX battery pack allows for longer run-time and charges in one hour