The Bosch 2-Tool Combo Kit delivers professional cordless drilling and driving performance, combined with EC Brushless efficiency. The GXL18V-240B22 kit It includes a GDX18V-1800 Freak Bit/Socket Impact Driver that has a two-in-one chuck that offers a 1/4 In. quick-change hex shank with power groove for bits, and a 1/2 In. square drive for sockets. Its motor produces up to 1,800 In.-Lbs. of torque and up to 0-3,600 impacts per minute. The GSB18V-490 1/2 In. Hammer Drill/Driver is made to tackle demanding materials and applications (such as metal or masonry) anywhere on a worksite. This powerful hammer drill features 20+1 clutch settings, for reduced overtightening. Its efficient EC Brushless motor delivers 490 In.-Lbs. of torque and a no-load bpm of 0-22,000. The kit includes two SlimPack batteries, an 18V charger and two belt clips that provide a secure hold.