If you have ever sharpened a chainsaw freehand then you know how time consuming and difficult it can be, in fact very few men can sharpen a chainsaw properly. In this excellent 2 part video Wranglerstar demonstrates Granberg’s simple but effective 12 volt sharpener that provides precision and more efficient sharpening. So check out this excellent video below to see how easy sharpening your chainsaw has become with this this handy little sharpener.