My Oneway is a real workhorse I've had it for over 25 years and recently my drill chuck spins. I have tried over the years to keep it clean and the morse taper drill chuck is nearly new. I have read all sorts of ways to try to correct this issue and I am about ready to try something. Upon examination I see two very thin shiny rings on the chuck morse taper should I gently try to clean that. I do have a small metal lathe and could likely spin it with that and gently file the areas where the rings are or is there something else I should try first. I have gently moved some med steel wool into the taper on the tail stock and did find a little dirt. Would something like WD40 be a good idea as a cleaning agent then wiped and dried? Has anyone else dealt with this issue and if so how were you able to remedy?