Rockwell RC3136 Shop Series Hammer Drill, 120 VFeatures hammer function for drilling concrete and brick, magnesium gear housing for strength and prolonged life, keyed chuck secures the bit for heavy duty use and soft grip handle. Specs: 120V 60Hz, 0 2800RPM no load speed, 0 44800BPM impact rate, max drilling capacity in: wood 1 1 4", masonry 1 2", steel 1 2" and weighs 5 lbs. Includes: 10 ft. cord, auxiliary handle, depth gauge and chuck key. Voltage Rating: 120 V Current Rating: 7 A Frequency