Been wanting to try this for a while. M4 steel 1/4 x 3/4 (also have some M2 and will compare sometime), 3/4" copper pipe cap, and some left over walnut from old projects. Mostly made with disk sander and lathe; a little help from the dremel and some hand chisels to seat the tang. A little time consuming, but actually easier than I thought it would be. Cuts like knife through butter and leaves an incredibly smooth surface. Think next one will have a longer handle but will turn it with this.