Cozzini Bros. is America’s most trusted commercial knife rental and knife sharpening service. Our 55,000+ customers include s ... ome of the largest and most recognizable restaurant and grocery chains in the United States. Whether you need quality knife sharpening, sharp slicer blades, sharp food processor blades, or a can opener sharpening, Cozzini Bros. delivers. We give you the professional commercial knife sharpening, consistent quality, and dependable service your restaurant demands. read more