Gedore Chisels & Punches Hole punch 611334 - Gedore 4543890, The Gedore hole punch, item number 4543890, features a 15 mm diameter, perfect for precise, clean holes. Manufactured by Gedore, it is known for its durability and accuracy. It is typically used in leather, fabric, and craft projects. Gedore 4543890 Arc Punch 15 mm