Powerful 8.5 AMP motor engineered for improved drilling and mixing performance 600 RPM provides increased speed and torque for drilling large holes Well-balanced design at only 6.3 lbs. for reduced operator fatigue D-handle rotates 360° with 24 positive stops for multi-position operation Rubberized grip for increased operator comfort All-ball bearing construction for smooth operation and longer tool life Heavy duty industrial 1/2" drill chuck engineered for positive bit retention Rocker switch for quick transition between forward and reverse operation On-board chuck key storage for fast and convenient bit changes Double insulated