Buck guarantees that every single one of their knives will be free of defects in material and craftsmanship for the life of the knife. If your blades prove to be defective, the Buck knife company will give you the option to repair them or replace them with a new knife. Note that this warranty doesn’t cover normal wear, misuse, and modifications of your knives. The company also warns against using their knives as hammers, pry bars, screwdrivers, or chisels.