A few months ago, David, Day0ne, posted that Buck Knives offered a new blade and spa treatment for $10 plus shipping. Sent Buck my 45 year old 501 with a broken blade and here's how it came back 2.5 months later. This knife hasn't looked this good since it was new. Big thank you to David for sharing info, AT for hosting a great source of info, and Buck for great warranty service. I could not be happier since the knife was a gift from my brother in 1981.
I should do the same with my broken one.
They do great work. I've got one I need to send myself.