UPPERCASE Designer Stamp Set made in a font created especially for jewelry artists. They're made of quality grade tool steel and are heat-treated for optimal durability. For those of you who are planning to mark steel, this font design allows for easier penetration. The font is designed and optimized for clear and easy to read marks. ★ Features ★ - All uppercase characters (26 Pieces) + numbers and special characters. - Easily stamp and spell words. - Suitable for all jewelry applications. - Comes with plastic storage case. - Precision heat treated to a hardness of 58-60 Rockwell C. ★ Safety note ★ - we recommend use of safety goggles when using these products. Please contact Wholesale Jewelry Website directly if you have any questions or concerns. Character size: 3/32" (2.4 mm) Case dimensions: 5.125" x 3.625" x 3.625. Stamp dimensions: 1/4" square x 3" long. ★ PLEASE NOTE: Tools and Machinery are final sale products and are INELIGIBLE for returns!