Blanking B Roll
United States Mint [Multimedia] (2016)
Multi-Media SummaryAll coins start as a sheet of metal. The United States Mint buys metal strips that are about 13 inches wide and 1,500 feet long, and these strips are wound into giant coils, which are easier to move. Each coil is fed through a blanking press, which punches out round discs called "blanks." The strip of metal that's left over is called webbing, and it will be shredded and recycled—usually into another sheet of metal.
The Mint doesn't make blanks for pennies—it buys them. However, the Mint supplies fabricators with the copper and zinc that are used to make the penny blanks.