That is a damn good question! However, I highly doubt it. The edge is considerably harder than the rest of the knife, so with a proper sharpening you shouldn't have to grind too much steel. I have seen a bunch of Ratweilers missing a ton of the cutting edge and still have about 1/2'' of the harder differential steel remaining. You would have to use the knife every bloody day for years to go through that much steel! That being said, there certainly are some fanatics here...so I hope we find an answer!