Well, as others have noted, it does mark. Visibility varies with angle, from what I’ve seen. Of course, I may have overcooked, undercooked, or undercoated it. Take one at sampling…well, take 2. Take one was on a medical alert bracelet that I’m starting to think might not have been stainless at all, since it left no marks at all.
Those look like pretty good markings. Permanent?
Could not take them off with rubbing alcohol or fingernail, so pretty persistent.
I did a piece of steel with a logo on it, and it would take a tool to scrape (scratch) it off.
I decided that this one was mine.