1. This hand stamping punch kit is made of 40Cr alloy steel and sandblasted for exceptional hardness and durability. Precision heat treatment provides excellent wear and deformation resistance, ensuring a clear, sharp mark with every stamp.2. All metal stamping kits are made to high standards, with precise dimensions and clear strokes. This stamp set comes with a hard plastic box for easy organization, carrying, and storage. Our products are not for single use, but are designed for long-term use.3. The number punch set includes 9 digits (0-8), with a reversed "6" usable as a "9".4. The metal stamping tools can freely form continuous characters and numbers, creating unique, stylish handmade stamps. Suitable for permanent marking on materials such as brass, plastic, leather, paper, aluminum, and silver.
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