The new Bosch 1191VSRK 1/2'' (1.25 cm) VSR hammer drill has a powerful 7 A reversing motor which provides the highest performance to weight ratio in its class and 0-3,000 rpm. It also has an ergonomic design. All this means the 119VSRK is engineered to provide the highest performance to weight ratio in its class. Use the selector lever to choose the hammer drill for tough concrete. Smooth power transmission and extended tool life. Variable speed reversing switch to complete control for drilling, driving and removing bits or screws. Select drill only for steel, wood, or aluminum. Kit includes 360-degree handle, depth gauge, and carrying case. 1-year limited warranty.