The Bosch Hammer Drill features a 1/2" three-jaw chuck designed for rugged drilling applications. The dual-mode selector converts the hammer drill to rotation only mode. The drill also features a variable speed trigger with reversing and a 360 degree auxiliary handle. Includes auxiliary handle, depth gauge, chuck key and carrying case. ADDITIONAL SPECIFICATIONS: Rating: 120V AC; Amperage: 7.0; No Load RPM:0-3,000; No Load BPM: 0-48,000; Maximum Capacities: Concrete/Masonry: 5/8" / 5/8"; Maximum Capacities Steel: 1/2"; Maximum Capacities Wood: 1-1/2"; Maximum Capacities Aluminum: 5/8"; Length:11.0"; Weight: 4.1 lbs.