Fits common size 12 meat grinder/mincer #12 Blade Size: Diameter: 1.8 inches. Thickness: 0.49 inches. Installation hole: 0.5 inches Utility Kitchen Tool] Stuffing disk for converting meat into stuffing, a replacement blade for the standard mixer attachment. NOT FIT LIST: kitchen aid sausage maker, weaton 12 meat grinder, cxs machine, lem 12 meat grinder, cabela 12 meat grinder, chef's choice meat grinder, nesco fg-400pr meat grinder, 1224 lem tabletop meat grinder, etc. Suitable for common 12-gauge meat grinders/grinders We confirm the square hole size is 12.7mm, but there may be some deviation from batch to batch. OUSTUE Stainless steel cutting tool replacement grinder meat grinder blade set of 2 pieces