I had a buck knife and used it for over 10 years the blade had been sharpened that many times it was less than 1/2 the original size.
The blade ended up breaking I got in contact with Buck and they said send it back, I told them that the knife had been used and abused in the time I had it.

A few weeks after I sent it too them a brand spankin new one turned up with a note thanking me for using their knife.

Buck and Old Timer are the only knivesI will use.