Shop question that probably has a simple solution, but that so far, has eluded me:
Have 2 wooden discs that I need to turn true, they already have 7/8 holes in center.
My only rotary tool is drill press with 1/2 chuck.
Does somebody have or know of a way I can chuck them in my DP and turn them true...remembering that I have 1/2 chuck?
I've thought of a mandrel, maybe there's one made with adjustable/expandable center so one can chuck a piece with existing hole...anybody know?
You might try and get a bushing like the ones uesed fro grinding wheels to reduce the hole diameter to a smaller grinder shaft. I am sure you should be able to find these. It might require two steps to go from 7/8 to 1/2 inch but you could then put them on a 1/2 inch bolt and chuck it into the drill press.