Meat Grinder plate with burger grind. 1/4 (6.0 mm) holes. Premium plates for very large grinders. Biro, Butcher Boy, Berkel, Hobart. Plate measures 5 1/8 (129 mm) across. 3/4 (19 mm) thick. Fits Single or Triple Notch grinder heads. Easy clean-up and storage. #52 size Stainless Steel Meat Grinder plate with HUB 1/4 (6.0 mm) larger hamburger grind holes.