How to make a hunting knife from a rasp file
The blade of a farriers rasp is a very good blade for making a hunting knife. They are usually made from a high carbon steel that is extremely tough, stout, and strong. This makes them a great choice for hunting knives because they hold an edge for a long time, and will not splinter easily or wear out as quickly as many other metals. The round teeth on the rasp are a very good shape to use for hot filing (the process of using the blade to sharpen the edge of a new knife).
When making a new knife from this type of metal it is very important to heat treat the blade to make it very hard and then temper it back to a softened state.