Electro Etch a 5160 Steel Knife (Failed) I was experimenting of knife etching. I have seen some youtube videos on how to etch a knife. I tried one technique which is electro etching which involved in etching the metal with rust. You should have the following: Knife (of course) 12v AC Adapter (from toys, routers, etc) Several q tips because it will get dirty later on. Your design on a vinyl stencil Salted water Steps: Place the stencil on the knife. make sure to tape it so it wont go somewhere. Connect the - on the Q tip while the + of the wire on the metal part of the knife. Mix a good amount of salt on the water. Plug the 12v AC to the power outlet Wet the part of the q-tip with the wire. (make sure that the wire will also get wet) Start etching. You will know that it is etching because you will hear a sizzle. Repeat until you are satisfied with the etch... I have failed mine... I might do it again... :) ... https://www.youtube.com/watch?v=ZAdO4RH38NU