DEWALT built high torque, high efficiency motor with replaceable brushes. DEWALTå¨ exclusive lithium ion cells offer long battery life & durability: 2,000 recharges. Preferred rocker switch design for fast and easy forward and reverse. Anti-slip comfort grip provides increased comfort and control. High speed all-metal transmission delivers 1,400 rpm. Includes: 1 hour charger, (2) 36V Li-Ion packs, Kit Box.