You need to investigate the material treatment you are wanting more before you go and by an anodizing kit. anodizing is growing an oxide layer under controlled conditions to get a protective coating that can be dyed. It is done to aluminum. The only other material I am familiar with that can be anodized is titanium. I haven't seen or heard of anodizing stainless steel or an anodizer machine. Can you give an example of a part that has the finish you want or post a pic of one? It sounds like what your asking about may be a heat treatment finish.