General description The 12 Pieces Round Steel Hollow Punch Set is an essential tool for crafting and DIY projects. Made from durable heat-treated carbon steel, this set is designed to create clean and precise holes in various materials including leather, canvas, and rubber. Ideal for use in making watch bands, eyelets, and other fabric applications. Technical specifications Material: Heat-treated carbon steel Sizes: 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 12mm, 15mm Quantity: 12 pieces Usage Choose your leather or material. Place it on a shock-resistant support, preferably using wood shavings. Hold the stamp in place. Use a hammer to punch through the material.