Have you tried Tool Magic yet? It's a gel-like solution that dries to a protective coating for your tools to protect wire work from dents and scratches. Along with good technique, Tool Magic will help ensure that your wire pieces will not be marred by tool marks. I coat my round nose pliers, flat nose pliers w/ tip and chain nose pliers. Ever since I discovered Tool Magic 5 years ago, I always keep a bottle in my tool box.
Depending on how intensive your wire work is, the coating may last through several projects. If you work extensively in wire work or work on several pieces in one sitting, it is a good idea to have two sets of tools. When you need to re-apply Tool Magic to the tools you have been using, you have a fresh set of tools to use as you wait for the solution to set (2-3 hours) and you won't miss out on valuable production time, especially if you are working on a deadline like a wedding or craft show.
Click here to see instructions on how Tool Magic works or visit Bead Bee and ask for a demonstration.