I've stuck Razorcaps in my poured concrete basement wall and all i needed to do was touch up the tip with a file. I've killed many deer with them and a cow moose last year. Never had one fail on an animal and never had the welds break. At one point I think there was a problem with them when they were taken over by NAP but that seems to be an old story. The steel in them is very easy to sharpen and they hold an edge better than any other head I have used. The head that took the moose last year broke the knuckle that covers the heart and was stopped when it hit the off side leg. The head is still in service. I think that they may be the best engineered three blade bh out there when you consider the fact that they are weight adjustable.