Co-link 9 in 1 Stainless Steel Hollow Punch Tool for Leather Plastic Wood Belt Hole Punch 2.5mm-10mm Suitable for hobbies, crafts, modeling, home repair etc. These strong and durable tempered steel tubes come in a variety of sizes Has knurled bodies for a secure grip, precision ground flutes and cutting edges Easy to use, just place punch in position and strike firmly with hammer or mallet Great for making clean holes in gaskets, leather, plastic, rubber and other soft materials