I'm suprised yours has lasted and worked for you! I bought3 of them paying over 250.00$. My fillet knife has been really good, i sharpen that one with white crock sticks. The other 2 have been nothing but junk!!!! They both are saraded blades and i hate them, you can't sharpen saraded blades. I called the company and told them after the first few times i used them that they were dull, they said thats impossible. They wouldn't take mine back!!