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. Overall length: 8.5". Hammer head length: 63.5mm (approx. 2.5"). Face diameter: 13mm (0.5").