How does An Impact Wrench Work?
An impact driver or wrench is basically a powered hammer that converts the pounding action into a turning motion. The tool delivers a fixed amount of energy with very short blows, but has a safety spring mechanism so that it does not simple turn anything off until it breaks. They can be powered by compressed air, hydraulics or even electricity. To find more information click here: http://en.wikipedia.org/wiki/Impact_wren…
