http://www.warn.com/utility/pullzall/cordless.shtml The WARN PullzAll has hundreds of great uses. Here's one of them: Helping to fell a tree. Jack, a professional tree feller, uses the WARN PullzAll to help add tension to his line in order to guide the tree to exactly the place he wants it to fall. It's faster and less work than the old-fashioned ratchet strap, too. Timbers!