Impact drivers use higher speeds then an impact wrench. The higher speeds create a bit lower torque so when using it for fasteners like deck screws, they don't snap off. With that said, they still on average make 3X the torque of a standard drill, allowing you to work faster and cleaner. And a cordless impact drive makes the convenience factor even that much better. ToolKing.com offers a great selection of impact drivers at the web's lowest prices. Browse our current selection of cordless impact drivers from the top brands including DeWalt, Makita, Bosch, Milwaukee, and many more!