6MM 1/4" Steel Punch Stamp Die Set Metal 36 Pc Numbers & Letters in plastic case Stamp letters & numbers into steel and other metals, wood, leather, vinyl or plastic Complete set of 26 upper-case letters, ampersand (&) and numbers 0 - 9; professional quality Larger characters are easy-to-read, 1/4" height (6mm); set weight 40 oz High-durability hardened and tempered carbon steel 2-1/2" length with 5/16" square shank Permanently identify equipment, tools & valuables; customize woodworking projects, imprint initials