Trademark Tools 1/16" Letter and Number Punch Set, Blue: * All the letters and numbers are constructed of heavy-duty carbon steel * Each number or letter measures approximately 1/16" (1.5mm) * Great for jewelry and other intricate designs * Comes in a plastic storage box with lid * Full set of alpha-numeric characters * Approximately 2.33" (59mm) long * Made from carbon steel * Storage case with lid * Hardened and tempered with sandblasted finish * Case dimensions: 1.875"L x 1.875"W x 3"H inches