Up to 25% faster drilling & up to 2x longer runtime compared to Hart HPHD01 Hammer Drill Brushless motor delivers more power with up to 650 in-lbs. of torque Hammer mode provides up to 31,000 BPM for drilling through masonry 1/2" all metal ratcheting chuck for secure bit retention & durability 24-position clutch & 2-speed gearbox for adjusting speed & torque Auxiliary handle for added stability Compatible with any HART 20 Volts Lithium-Ion Battery Limited 3-year warranty