6-pc Set replacement knife and discs for Waring Pro Kalorik, Sunmile, Oster, Rival, Back to Basics Meat grinder Complete 6 pc set of replacement parts for small electic grinders Fits MOST Deni Rival Sunmile Oster Elite Waring Pro Nesco . Back to Basics. Stainless Steel. Will not rust. Fine, Burger, Large Burger, Course and the Stuffing disc Knife is 1 3/4" tip to tip.