This works okay, but I found that I much prefer a manual file, or better still, a manual file with a bar-mount filing guide. The Dremel tool files quickly, and I found it much too easy to be a little off in my angle when the stone started shaving metal. I bought one of the Oregon bar-mount guides, and I have been very pleased with the result. I still plan to take chains in for professional attention about every fifth sharpening.