This impact wrench made by Ingersoll Rand has a 1/2-inch drive size that makes it useful for removing and tightening wheel nuts. The product's twin hammer mechanism can produce up to 600 pounds of torque, but the torque can be easily regulated for jobs that don't require as much power. The wrench's contoured handle provides a comfortable grip for firm control. This wrench is completely self-lubricating, allowing for continuous use throughout the day.