for restoring old metal parts planer

From time to time I ersteigere in English Ebay old planer which I restore. Sometimes I have to remove rust or polish up some points. In addition I had a Dremel Fortiflex added myself and bought this cleaning it. The quality impression of professional tools do not make the parts, but I do not know where I can get better. In fact, I'm using a few parts from the set, but without the set I could not figure out what they are and that's from user to user also sure different. The parts that I need, I will continue to buy more individually.