General description The 100 Set Grommet Tool Kit includes 12mm metal grommet sets and 3 grommet tools, perfect for DIY enthusiasts, upcyclers, and anyone needing to repair tents or tarpaulins. The kit comes with a plastic storage case for easy organization and access. Technical specifications Material: Metal, Copper Color: Silver Grommet size: 12 mm (1/2 inch) Inner Diameter: 21 mm (4/5 inch) Outer Diameter: 21 mm (4/5 inch) Top: 5 mm (1/5 inch) Package includes: 100 Metal Eyelet Sets, 3 Grommet Tools, 1 Storage Box Usage Ideal for DIY projects, anchoring tarpaulins, and repairing tents. To use, place the textile or paper on a piece of slate, hit it with a hammer, ensuring the hammer and punches are perpendicular to the slate. Insert the small holes into the pins, attach the appropriate discs, and secure the grommets with a few punches. Inspect the grommets after use to ensure they are securely attached. Other information Wear gloves when using the eyelet tool to protect your hands.