Conical design grinding punch for round holes in leather, this innovative tool features a -coated for unrivaled durability and efficiency during the polishing process. The tool's tapered shape is designed for machining to precisely and efficiently grind round holes in leather products. The tool's -coated provides exceptional durability, ensuring that the tool can withstand heavy use over long periods of time. The tool's high-efficiency grinding capabilities allow for fast, precise drilling and a perfect finish every time. The tool's tapered design easily grinds the inner and outer edges of round punches from a minimum diameter of 2 mm to a maximum diameter of 15.5 mm. The internal grinding range is 3-18mm, and the external grinding range can reach 16mm., Weight: 0.1763698096 Pounds, Manufacturer: tiyao