Posted by Chewie [207.199.226.9] on Saturday, April 07, 2012 at 19:34:02 :
In Reply to: drill press question posted by Jerry in Idaho [69.59.83.175] on Saturday, April 07, 2012 at 16:40:27 :
Most likely it's dirt or a touch of surface rust...
Get some emery cloth or scotch brite and clean up the taper on the chuck and the reciever both. Not too much; just enough to shine them up a little.