The #3 (7/16'' or 11.11 mm Inner Diameter) Grommet Hole Cutter is manufactured from drop forged steel. To use, the cutter is placed where the grommet is to be installed. Make sure that there is a wood or silicone block underneath the spot so that you don't damage the cutter. Once placed, use a dead blow hammer to hit the cutter until it cuts through the material. After, install a grommet using the die setting tool.
Grommet Overview Video
How to Remove a Grommet from Fabric
How to Install a Grommet or Eyelet
Fabric Product Repair Playlist
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Celina guarantees this product to be free from defects in materials and workmanship 30 days from the date of purchase. Limitations apply.