Been trying to think up a present for my father and I remembered that he goes through a ridiculous amount of knives by trying to use them like an ax and crowbar to hack through bones and torque apart joints (his culinary theory is if it doesn't work you need to chop harder
). I've got an old lawn mower blade lying around so I'm thinking of forging that and it shouldn't be too difficult to make a rectangle, but I'm not too sure what grind I should put on it. Also would a lawn mower blade be good for this or should I go for something different?