The DEWALT DCD791D2 Brushless Compact drill/driver kit is a professional 20v cordless drill designed for use in the home, workshop, or on the construction site. With a 1/2 inch chuck, this DEWALT drill is capable of using most commonly available bits for excellent versatility when in use. Additionally, the li-ion battery operation means the user can ditch the cables and use this drill in even the most inaccessible spots.