Engravers use a steel tool called a burin to cut the picture or pattern into the surface, mostly a copper plate. Gravers come in a variety of shapes and sizes that give different line types when used. The burin gives us a line that is unique because of its steady appearance and smooth edges. The angle tint tool has a slightly curved tip that is commonly used in printmaking. Florentine liners are flat-bottomed tools with multiple lines on them, used to do work on larger areas. Flat gravers are used for doing work on letters, as well as most musical instrument engraving work. Round gravers are commonly used on silver as well as other hard-to-cut metals such as nickel and steel. 