Zelmer Meat Grinder Knife Set 00755469 ZMMA018X (2 pcs.) D=54mm s=9mm Bore=10x10mm NR8 | Factory number: 00755469-2 Parameters: Type of sharpening: One-sided Diameter, mm: 54 Dimensions of the hole, mm X mm: 10x10 Thickness, mm: 9 Shape of the hole: Square