Alfa HOB 84181D Blade (Set of 2) for 18" Bowl Hobart Chopper 8418 65372 Includes 2 knives to replace Hobart 00-077372, Leader Knife and Hobart 00-077373, Follower Knife Material: Stainless Steel For Hobart models 8181, 8185, 8186, 84181, 84181D, 84185, 84186 and 84186D food cutters.