The Artisan’s Mark Planishing Hammer is great for flattening and work hardening. Its highly polished face will burnish your metal as you hammer, leaving it shiny and pristine. One face is flat with slightly rounded edges, and the other is softly domed and will create a beautiful “hammered” finish with large, soft dimples. High quality steel that is hand-polished allows this hammer to do a lot of the finishing work for you.