Plate and knife combo. Meat Grinder plate 1/2 (12 mm) holes (sausage grind plate). W/ HUB on one side of plate. AND a new design sharp stainless steel swirl grinder blade. It is for convenience. It allows you to remove the plate quicker and easier by holding on to the round extrusion that is called the hub. Premium plate and knife. GO STAINLESS for maintenance free clean up and storage. Plates measure 3 3/16 across. Knife is 3″ tip-to-tip, 1/2″ thick. 17/32 center square hole. Easy clean-up and storage. LIFETIME NO RUST GUARANTEE! Fits many brands of meat grinders including most Hobart, Berkel, Univex, Enterprise, Cabelas, American, Hollymatic, Jupiter, Kreft, Tor-Rey, LEM, Blakeslee, Buffalo, Butcher Boy, Chop Rite, Biro, General, Intedge and MANY, MANY others. Most plates are also available in smaller #22 size. We carry plates, knives and sausage stuffing tubes to fit virtually all brands of meat grinders.