Support BladeForums! Paid memberships don't see ads! This is the second knife I made (I'm only to 6 or 7 total). It's a higonokami made from a copper water pipe, file, and brass rod. I knew going into this idea that the steel may not properly harden by heating past non-magnetic, holding and quenching and it most certainly did not. I also knew that my father would proudly display it on a shelf next to his other nic-nacs and not care or even know. Here's what I did with the leftover pipe and some 2ga wire.