Jeweler's Tools 5/16" 8mm Professional 36pc Letter & Number Stamp Punch Set with Wood Case - Hardened Steel - Use on Metal, Wood, Leather & More 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 Extra-large characters are easy-to-read, 5/16" height (8mm); wood case, set weight 4 lb, 10 oz High-durability hardened and tempered carbon steel 2-1/2" length with 3/8" square shank Permanently identify equipment, tools & valuables; customize woodworking projects, imprint initials Complete set of 26 letters, ampersand (&) and numbers 0-9 (number six is upside-down nine)