Thanks for the comments and the knife names to research. Thanks too for the link to the Leuku Blog... beautiful blades.
Pity about that broken knife. I don't know why that particular one broke of course. But to my way of thinking, if a plain knife blade is relatively hard to sharpen with a good file, then it is possible it may be a bit more brittle than a blade that is easily cut with a file. Im not a metallurgist, but if I were going to make a chopping and levering knife, I think I'd be inclined to use a medium carbon steel tempered to act like a car leaf spring. That is a sad picture.
Pity about that broken knife. I don't know why that particular one broke of course. But to my way of thinking, if a plain knife blade is relatively hard to sharpen with a good file, then it is possible it may be a bit more brittle than a blade that is easily cut with a file. Im not a metallurgist, but if I were going to make a chopping and levering knife, I think I'd be inclined to use a medium carbon steel tempered to act like a car leaf spring. That is a sad picture.