The operation of working a metal surface to a smooth, evenly rounded or flat shape, usually in soft metal such as copper, silver or brass. The metal is hammered with a planishing hammer on an anvil, the anvil and hammer having specially shaped and polished working surfaces. For clock plates the work can be finished with a wide-edged chisel-shaped tool with the edge squared off to act as a scraper, but rounded forms in casework are completed with the hammer when hand-produced.