Material: The punch pliers are made of galvanized steel, with high hardness, good toughness and durability. The flexible bi-material handle increases the thickness of the pure copper joint. High hardness and durability. Comfortable Design: The belt puncher conforms to the ergonomic design and adopts double lever mechanism, which greatly saves your physical strength. Because the handle is padded and non-slip, it is very suitable for long-term repetitive work without causing sore hands or blisters. Various sizes: 6 different sharp and precise round holes can be drilled: 2 mm 5/64", 2.5 mm 3/32", 3 mm 1/8", 3.5 mm 9/64", 4 mm 5/32" and 4.5 mm 11 / 64". Adjust the screw beside the wheel to adjust the tightness of rotation and switch between different sizes. Multifunctional: Often used for punching leather, belts, plastics, rubber, canvas, cloth, cardboard, saddles and other similar materials; leather punches are particularly useful. Suitable for crafts, hobbyists, DIY and other projects. Note: Anti-rust measures have been taken when the leather punch leaves the factory, so the surface will be a little greasy, please rest assured to use it. (There is a buckle on the top of the handle, which can be fixed)