5/6/8/10/11/12mm leather hole punch for punching precision smooth holes in thick fabrics, leather belts, and straps. Shank Dia: 1/4”; Total Length: 74mm.This hardened punch is made of heat-treated carbon steel, strong and durable. A polished surface and sharp punch make cutting clean and neat, special design makes fast chip removal.Hex shank hollow punch work with power drills or drill presses can easily cut through multiple layers of fabric.Widely used for punching in leather, paper, soft plastic, rubber, PVC board, clothes, shoes, canvas, and other materials.If the punched material is too thin, please place a piece of thick cardboard.