This ATOMIC compact brushless 2-tool cordless combo kit includes one 1/2 in. hammer drill/driver, one 1/4 in. impact driver, two 20V MAX* lithium ion batteries, charger, and TOUGHSYSTEM case. At only 5.1 in. front to back, the impact driver features a high-performance brushless motor that delivers 1700 in-lbs of torque and 3 LEDs for optimum illumination as you work. The hammer drill/driver"s brushless motor provides 340 unit watts outs (UWO). The hammer functionality enables users to complete masonry drilling applications. The LED is positioned on the foot for better visibility. Both tools feature an ergonomic design for balance and easier tool control, along with a removable belt hooks. They are backed by a 3-year, limited warranty so you can buy with confidence.