Concrete max 7/8″ Steel max. 1/2″, 120 Volts Rated Power = 700 W Rated current input = 6.5 A Mains Frequency = 50-60 Hz Weight = 5.0 lbs (Without side handle) Dimensions (lxhxw) 14.3 x 8 x 3.5 ” Minimum distance between wall and hole drilled: 1.3 ” No load speed: 0-930 rpm, 0-1200 rpm (in 1st gear), 0-2500 rpm (in 2nd gear)