Profile: Charles R Mueller & Sons, Inc. is a machine job shop. We sharpen any kind of steel from flame hardened to carbide. We use the knife grinders for sharpening. We deal with production turning, large lathe work, chucking, milling and boring. We offer machine rebuilding & repair, metallizing, edge grinding, welding and lathes. We focus on all types of plastic grinders, packing house equipments, pumps, printing machinery, steel mill equipments and injection molding equipments.