Diamond-Coated Durability & High-Efficiency Grinding: This round hole punch edge sharpener features a diamond outer layer with emery plating, providing exceptional durability, high-efficiency grinding, fast and precise polishing, and consistent sharp results even after long-term heavy use.
Conical & Tapered Design for Precision Machining: Innovative conical grinding punch design with a tapered shape allows precise machining of round holes in leather, efficiently polishing both inner and outer edges of round punches for a perfect edge every time.
Wide Grinding Range for Most Round Hole Punches: Suitable for most regular-sized circular hole punches, with an internal grinding range of 3–18 mm, external grinding range up to 16 mm, and compatible with punch diameters from 2 mm to 15.5 mm.
High-Quality Stainless Steel Core: Made of high-quality stainless steel with diamond and emery sand plating inside and outside, ensuring strength, stability, corrosion resistance, and easy grinding of inner and outer edges of leather round hole punches.
Professional, Easy to Use & Reliable Support: Designed for grinding and sharpening round punches inside and outside to achieve a sharp edge, lightweight at about 80g, ideal for leather crafting, polishing, and repair.