1. Material: tool steel + red plastic-coated handle 2. Tooth pitch: 4mm 3. Sharp teeth have strong penetration and can penetrate two or even three layers of leather at the same time 4. Almost silent when drilling, avoiding the influence of noise 5. Ergonomically designed handle, comfortable grip, simple punching 6. For leather and leather goods punching, 2 teeth and 4 teeth can be randomly replaced 7. Weight: about 148g