These stamps are classified as premier grade, therefore ideal for prolonged industrial use. Each shank is tempered for an extra dose of safety, and the increased length provides a better impression. All of the letters are reversed for creating molds, dies, or die casting dies. On a mold stamp the character is engraved normal and reads left to right, so when it is stamped it reads the correct direction. This set consists of 27 pieces, with letters A through Z and an ampersand (&).