The Bosch 11250VSR 7/8" SDS-plus® Bulldog™ Rotary Hammer weighs only 5.5 Lbs., but it has a muscular 6.1 Amp motor that provides 1.7 Ft.-Lbs. of impact energy. It has an ergonomic pistol-grip handle, which provides outstanding comfort and performance in hard-to-reach or all-day tasks.