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Anybody ever make I knife out of an old file? I started today just for something to do. Used a 4" grinder to cut the file, then the same grinder to bevel the blade. When I got closer to where I wanted it I moved to a belt sander I clamped down to a bench then a palm sander then finally by hand. The whole time dipping in water often so as not to wreck the temper. After all of this I took it to the kitchen table and on to the wet stones. I can cut newspaper and shave my arm with it. Handle is next. I'm into this for $0 all said and done.