Delivering 300 ft. lbs of torque and weighing only 7.0 lbs., this tool has a fantastic power to weight ratio. The powerful 7.0 amp motor drives a unique impact mechanism at 1800 RPM (no load). This model features a friction ring and through hole socket retention, and a rocker switch for quick selection of forward or reverse. 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. This Milwaukee square drive impact wrench was designed to maximize your productivity and reduce downtime with frequent accessory changes.time.