I thought I would show some pictures of one of the most useful tools that I have for sharpening chain. I have a tradional stump vice, which is great for working in the woods, but a lot of the time I have my truck with me so I came up with a neat solution to hold the saw.
Whoops, !! Forgot to attach pics. Mounting bolts when it is not in use hold the squench secure, which is what I use to tighten the mounting bolts into a piece of plywood that I keep in the back to protect the tailgate.