Delivering 300 ft./lbs. of torque and weighing only 6 pounds, the Milwaukee 9070-20 1/2-Inch Impact Wrench with Rocker Switch and Detent Pin Socket Retention has a great power-to-weight ratio. The powerful seven-amp motor drives a unique impact mechanism at 1800 rpm (no load). This model features a pin-detent system to securely retain sockets or adapters 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. It is designed to achieve desired installation torque faster and loosen rusted or fretted bolts in less time.