3mm Hole: Hand punch hole size: 13.5cm * 5.5cm * 1.6cm. Can punch holes with a standard diameter of 3mm. A 3mm punch pliers can punch 6-10 sheets of A4 paper at a time. It is recommended to print a small amount of paper at a time for best results. Collect Paper Debris: Punching Tool are equipped with paper debris so you don't have to worry about paper debris falling on the floor. Simply turn on the switch to throw the debris into the trash can. Design: The handle matches the artificial engineering design and is comfortable. The head design of the 3MM hole punch is similar to the "crocodile" ear mouth. Round punch punch is divided into three layers, the upper layer is used to press holes, the middle layer is used to fix the flat paper, and the lower layer is used to fix the base. Widely Used：Round Paper Clamp can be used for paper, postcards, cardboard, plastic wrap, photos, checking tickets, scrapbooking and other crafts. Ideal for many hobbies and crafts High Quality Material：The