I use a belt sander,then finish up with sand paper,and some elbow grease.I was speaking on the phone with one of the guys from here regarding a way to sand several lures at one time...He recommended trying a brass cleaner(a viberating tumbler system used to clean gun brass)I've got a catalog orderd that has these.I figure I can use a belt sander to get the rough shape,then throw them in the tumbler with a sanding agent to finish them up..Nathan