A fine grind, these 4.5 mm plates are great for the second grind, coarse hamburger and regular sausage like breakfast, polish or German. Each plate is 3-7/8 in Dia and has 4.5 mm (3/16 in) plate holes. Our grinder plates are made to LEM's stringent standards for hardness and quality. We carry both carbon steel and stainless steel plates. Both types of plates are hub-less so they can be used on both sides. Remember when changing your knife to change the plate at the same time for optimum performance.