Ideal for drilling anchor fixing and through holes in concrete and masonry from 12 to 52 mm in diameter. Core drilling up to 150 mm. Active Vibration Control system incorporating a counterbalance mass and floating handle delivers extremely low vibration. Electronic variable speed and impact energy control. Complete Torque Control. A patented 2 step clutch allows the user to select one of two settings for different diameter drill and core bits providing the maximum level of protection in all drilling applications. Lock-on switch for chipping. Rotation-stop for demolition applications in brick, masonry and light chasing in concrete. Brush wear and service indicators.