#3 Grommet Die Setting Tool
The #3 (7/16'' or 11.11 mm Inner Diameter) Grommet Die Setting Tool sets grommets into paper, laminate, fabrics and many other materials.
To use, cut a hole to the appropriate size to accommodate the #3 grommet. Place the roll-rim half of the grommet onto the setting tool with the inner edge facing up. Slide the tooth washer onto the handle of the tool, with the teeth facing down (away from the handle). Arrange your material so that the edge of the roll-rim half comes through the hole in the material, then place the handle onto the base through the hole and strike the handle of the tool with a Dead Blow Hammer. Occasionally lift the handle and check the edge of the rim until it is flat against the inside of the tooth washer.