The replacement blades are pretty cheap. Easier than trying to sharpen the dull ones. A lot of the blades will fit different knives. The Mister Twister fits my American Angler. I am not where I can look to see the model number. I got it used off of EBay for $35. Looked brand new, did not know what a deal it was until I saw the price of new ones. It is a hoss, I cleaned a zillion Oscars when I was in Florida last March and it never missed a beat.