I used a question mark in the title because I really don't know how well this will work. I am using an old chainsaw bar to make a 18" blade machete. Others have done it, but I don't know the end result. Here is the beginning....roughed out with plasma cutter. The plasma cutter burns ~ 1/16" in from the cut, so slowly grinding out the plasma cuts rough edges will take out the soft material......at least this is what I'm thinking (and hoping).