7 different half-round punch sizes: The tool diameter is 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm (0.39", 0.59", 0.79", 0.98", 1.18", 1.38", 1.57"). The tools will meet your needs for different sizes in leather crafting. Wide application: The leather cutter is suitable for the final processing of belts, wallets, card holders, leather bags, handbags, and other leather goods. Ideal for hole punching and leatherworking tasks such as belt ends and bag corners. Sharp and durable solid metal material: The hole punch is made of hard steel and designed in a half-round shape, ideal for half-circle leather cutting. Durable and easy to use. Easy to use for professionals and beginners: Whether you are a beginner or an expert in leathercraft, simply hammer the half-round punch to embellish the end of a belt. Useful and practical tool for your leather crafting projects. Note: Be cautious of the tool's sharpness during use. Do not strike the craft tool with a metal hammer, as this may damage the tools due to metal-to-metal contact. Easy to carry – small and lightweight, it won't take up much space. The 8 half-round cutting pieces meet various size requirements. This half-round punch set makes a great gift for friends or family who are new to leather crafting. The sharp edges easily cut shapes in gaskets, vinyl, leather, wood, belts, plastic, and other soft materials. Features: Color: Silver Material: Steel Diameter: 5mm (0.2"), 10mm (0.39"), 15mm (0.59"), 20mm (0.79"), 25mm (0.98"), 30mm (1.18"), 35mm (1.38"), 40mm (1.57") Package includes: 8 half-round punches Notice: 1. Use on a hard and smooth surface. 2. The set is sharp; keep away from children. 3. Store in a dry place, avoid moisture, clean with a dry cloth, and apply anti-rust oil after use. Note: All measurements are manually taken; please allow 1-3mm error. Due to differences in lighting and display, there may be slight color variations. The actual product received will prevail.