Burin

Burin, or GRAVER (Fr. burin, from Ital. borino; but originally cognate with English bore), the principal instrument used in copper-engraving, is made of tempered steel, and is of prismatic form, the graving end being ground off obliquely to a sharp point. The distinctive style of a master is frequently described by such expressions as a soft burin, a graphic burin, or a brilliant burin.