Engraving is an intaglio printmaking process where lines are cut into a metal plate, usually made of copper or zinc, to hold ink. The printmaker uses a burin, a steel tool with a beveled diamond tip, to cut lines into the polished plate by applying pressure. Different pressures and burin sizes produce lines of varying thicknesses. The inked plate is then placed under pressure in a printing press with damp paper on top to force the paper into the recessed lines and produce the print, which shows a reverse image of the engraving.