The Stihl Stump Vice is a useful tool to help you with the sharpening of your chainsaw chain. All you need to do is drive the filing clamp into a tree stump or log and it will hold your guide bar safely & firmly in place while you sharpen the saw chain with a file and file holder. Comes with its own belt looped carry case. Can be used with any chainsaw. Stihl qaulity you can trust.