Larry, sounds like what I did. I wanted a chuck that would work on my metal lathe as well as my wood lathe. I ended up geting one for each. I only got one set of collets though wich is a problem if I want to use them on both lathes at the same time. since my son has started helping me with nearly every project I do this is becoming quite common.He is really developing an interest in making bullet pens as well. I may be loosing any use of my metal lathe soon.