This model features a Quik-Lok® cord, pin-detent system to securely retain sockets or adapters and a variable speed reversing switch for added control in drilling applications or driving lag-bolts. Delivering 300 ft. lbs. of torque and weighing only 6 pounds, this tool has a great power to weight ratio. The powerful 7.0 amp motor drives a unique impact mechanism at 1800 RPM (no load). The ergonomically shaped handle with a soft cushioned grip provides a well-balanced and controllable feel to the tool. The special mechanism achieves desired installation torque faster and loosens rusted or fretted bolts in less time.