Grommet Tool With Grommets by Michigan Industrial Tools. $2.82. Specifications:  ? 3/8&quot; Diameter Brass Plated Grommets  ? Includes a Uni-Chrome Plated Steel  Grommet Tool ? Repair or Customize Tents, Boat  Covers, Tarpaulins, Awnings, Drapes, etc.    Contents: ? 12pc. Grommets and 1pc. Grommet Tool