Common hole sizes: The 6-hole rotary punching machine has the 6 most common sizes and can accurately punch 2, 2.5, 3, 3.5, 4, and 4.5mm round holes. Hole punching pliers are commonly used to punch round holes in leather, belts, fabrics, plastics, etc. Especially suitable as a leather puncher. HIGH QUALITY & SAFETY: The durable upgraded metal hole punch is made of plated steel, high hardness and durable. The metal surface is treated with spray paint to avoid oxidation. The brass pad is thickened to ensure safety. Ergonomic design: The hole punch adopts the double-lever principle, which can greatly save your physical strength during use. The handle of the punch pliers has anti-slip function and palm protection function. The non-slip handles still work when you sweat or come into contact with water. Additionally, it protects your hands from wear and tear from long hours of work. Convenient Storage: There is a stainless steel snap on the bottom of the hole punch. When not working, you can fasten it with a stainless steel buckle, so that the punching pliers will become smaller, saving storage space and making it easy to carry. What you get: 5-in-1 punch kit. Includes hole punch, spare punch plate, screwdriver, ruler and knife sharpener. This manual hole punch is as sharp as a knife! You can aim at the place where you want to punch a hole, and you can pierce the object with just a moment of force, easily getting the effect you want.