The Bosch GBH2-28L 1-1/8 In. SDS-plus Bulldog Xtreme Max Rotary Hammer features outstanding power and speed to get the job done. It is a hammer that merits its place in the line of legendary Bulldogs. It weighs only 6.9 Lbs., but it features an 8.5-amp motor that provides outstanding performance. It delivers 2.4 Ft.-Lbs. of impact energy and 0-5,100 impacts per minute. It includes advanced Bosch technology that provides operator control and comfort KickBack Control and Vibration Control. The user can optimize the chiseling angle with Vario-Lock positioning. Concrete contractors, framers and other construction pros can use this hammer to get more work done more easily. The GBH2-28L has three modes for maximum versatility drilling only, hammer drilling and chiseling.