Another question I have concerns the handles. They are corroded on my machine. The wheels could be mounted in the lathe and brought back to a nice shine with some emery cloth or a fine file but there doesn't seem to be a way to get the handle off. It is a nice big handle that rotates but I can't figure out how it is held it place. It almost seems like magic. Anybody know how to get one of those handles off the wheel to clean it up? Is there something force fit?