Material: Made of high quality chrome-vanadium steel with high hardness, high resolution and quick penetration of leather / rubber / paper / cardboard. Ideal punching tool: Manual leather punching, it is required when manufacturing on leather. Sharp and identical points create clean and even holes. Save time: It can stamp holes evenly in your leather craft project. The sharp diamond tooth helps to punch quickly and effortlessly, saving time and energy. Ergonomic design: polished and smooth handles, comfortable to hold, so that you feel relaxed and happy during the production process. Widely used: Suitable for hand sewing the steering wheel set, sewing large leather goods, hand sewing the sofa seat covers, etc. 1. Prong pitch: Approx 4mm 2. Sharp circular tooth is helpful to punch quickly and effortlessly 3. The tooth edges of punches are finely ground, flat and spacing accurate. Sharp tooth can help you punch quickly. 4.The handle is made of high quality steel, sturdy structure, nice polished, comfortable to use. 5. Good gift for your families and friends who like DIY.