Now you know why we buy knives with Jerry's heat treat. Even if you were to break one, all of the Busse companies will replace the knife. As you can see, that has to be the toughest 154CM steel on earth. I would not hesitate to use the new Scrap Muk as a survival knife. I guarantee it is tougher than my Grohmann, which seems pretty tough. You would not believe the abuse my Mud Puppy has seen.