8.5 Amp Corded 1/2 in. 2-Speed Concrete/Masonry Variable Speed Hammer Drill with Auxiliary Handle and Depth Gauge2 speed are designed for drilling concrete, wood and metal; this drill can easily convert from rotation only to hammer drill mode Integral slip clutch helps minimize torque reaction 360 degree auxiliary handle with a built in depth gauge to help produce a wide range of movement along with a consistent drilling depth Bosch built, high output, 8. 5 Amp motor and 1 2 in. 3 jaw chuck for rugged hammer drilling applications Variable speed reversing trigger