- Emery coated: The polishing surface is emery coated, providing a 300 mesh polishing equivalent. It enables efficient grinding and sharpening of round hole punches in various sizes, including HY and other conventional sizes. - Stainless steel construction: Made from high-quality stainless steel, this manual sharpening tool is durable and long-lasting. It can withstand repeated use. - Wide range of sizes: The conical outer diameter ranges from a minimum of 2 mm to an unlimited maximum size. The conical inner diameter ranges from a minimum of 1 mm to a maximum of 5 mm. This offers versatility and compatibility with different hole punch sizes. - Sleek silver design: The leather round hole punch polisher features a sleek silver color, presenting a modern and professional appearance for your leatherworking toolkit. - Use scenarios: - Resharpen worn round hole punches to extend tool life. - Smooth burrs and refine holes after punching leather, fabric, or other materials. - Maintain compatibility with hole punches from HY and other conventional sizes in various projects.