Size #12 10 replacement knife for Porkert Meat Grinder Mincer This is an Original Porkert factory part. Drop forged Carbon steel Knife measures 2 1/2" (63mm) tip-to-tip. 15/32" (11.8mm) square hole European made. This knife fits the Porkert brand size #12 meat grinder ONLY. We also have the Porkert blade in the size #5. We have blades for virtually all other brands. Most knives are also available in larger #8, #12, #22 and #32 sizes. Buy extras and different sizes. We combine shipping charges. So, if you need an stuffing tube or stuffer plate, just add it on the order now and your shipping is greatly reduced. How does combined shipping work? Most of our products qualify for significant combined shipping discounts. When purchasing more than one item, your shipping discount will be automatically calculated at checkout. View our complete store at https://www.ebay.com/str/butcherbaker