When it comes to hammers I am usually very rough on them. But in the case of my jewelry hammers, especially the ones I use for texturing, I make sure the face is highly polished. I may even stop and buff the face of the hammer during the process of texturing a piece of jewelry if the face gets marred. Oh and by the way the sock in the background is but I put the hammer in to keep it from getting tarnished.
I work out of my garage so my tools are exposed to the changes in humidity and temperature. Rusty hammers and tools kinda add to the rustic look of my jewelry, but I do like a shiny finish. Oh ya, I almost forgot, the ring I finished today. That looks nice too. Ready to ship to one of my Etsy customers.