I decided I didn't like the koa wood and subbed the walnut . Everything is done through the 100-grit level. I'll probably stop at 180 and may just spray some leftover fake parkerizing on the blade. The grip -- shaped to be comfortable in my hand -- gets a few of coats of highly thinned linseed oil. The finished product will represent about four bucks and something like three hours of pleasant tinkering.