A fine grind, these 4-1/2 mm plates are great for the second grind, coarse hamburger and regular sausage like breakfast, polish or German. Each plate is 3-1/4 in Dia and has 4-1/2 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 hubless so they can be used on both sides. Remember when changing your knife to change the plate at the same time for optimum performance.