Material: The punch pliers are made of chrome vanadium steel, with circular knife-shaped cutting edges, strong and wear-resistant, can achieve stronger punching, with high strength and hardness , good toughness, durability, not easy to deform, etc. Your good helper to get the job done. Design: The handle has an ergonomic design that provides a non-slip and comfortable grip, easy and quick to use, simply unlock the handle, rotate the thumbwheel Scroll to select the hole size, align the leather body and squeeze the handle, you can adjust the belt to suit your body. Application: suitable for making round holes in leather, plastic, rubber, canvas, cardboard, rubber, polyurethane, fabric, silk and other soft materials, perfect for home hobby or commercial use, this hand tool automatically opens, rotates, sturdy and easy to use. , suitable for both men and women.