I've used one to sever the handles of some knives and it's still holding after 6 holes. Just as good as the more expensive beats I've bought from Home Depot. I'm tough on them and I know they won't last forever. I can make about a dozen holes per chisel before I have to sharpen them, but they end up bending or breaking. This 12 pack should last me a very long time and I will definitely buy again when I run out.