An intaglio printmaking technique that creates sharp lines with fuzzy, velvety edges. A diamond-pointed needle is used to incise lines directly into a bare metal printing plate, displacing ridges of metal that adhere to the edges of the incised lines. This displaced metal is called burr. Inking fills the incised lines and clings to the burr. Damp paper is placed on the plate and run through a press, picking up the ink from the incised lines and the burr, resulting in a characteristically fuzzy line.