The Performance Tool M627 3/4-Inch Drive Heavy Duty Impact Wrench, with durable aluminum housing, and powerful twin hammer clutch to provide maximum torque and smooth operation while generating up to 950 ft/lbs of torque and 762 blows per minute. Lever select direction change for quick and easy operation, built in regulator with 3 forward and 3 reverse speeds. Pin lock hole for oversized sockets, and socket retaining ring for rapid socket changes.