I really like the design of the clip on my mini-Grip, but, unfortunately, over time the black coating has started to scuff away (mainly from bumping into banisters while walking up stairs.) I'd like to restore some color to this clip and I though that it might be possible to remove the clip, clean it up, and then blue it with a blowtorch. I've never blued anything before and I'm curious as to what the exact process is. Has anyone done this before? Also, does anyone know what type of steel the clip is made out of? I believe that it is only possible to blue carbon steels, not stainless steels so I guess my plan isn't really feasible if the clip turns out to be stainless.