Size #56 plate *Rare size* 3/16" (4.5 mm) holes for typical hamburger grind meat Stainless Steel commercial size meat grinder plates. Fit Hobart, Biro, Omcan, Butcher Boy, Berkel and other heavy-duty size #56 meat grinders. Some model numbers include 4056, 4356, 500-56, 1556, 1056, AFMG-56-4 This is the plate with the 3/16" (4.5 mm) holes for burger ground meat Plate is 6"(152 mm) diameter. 11/16"(18mm) thick. 13/16" (20.8mm) center hole.