Cutting holes for large grommets
1 of 3
Photo 1: Punch the hole
Mark the desired location of the
grommet. Slide a wood block
under the tarp mark and align the
hole cutter over the mark. Strike the
hole cutter sharply with a hammer
until it punches through the tarp.
2 of 3
Photo 2: Position the grommet
Set a grommet on the anvil.
Push the tarp hole over the
grommet post and then slide the
washer (rounded side up) on top.
3 of 3
Photo 3: Hammer the grommet together
Position the punch into the
grommet tube and through the
anvil center. Strike the punch firmly
with a hammer. Rotate the punch a
quarter turn between blows until
the grommet and the washer fit
Grommet kits include an
assortment of grommets in several
sizes and all the installation tools
required. Kits are available at hardware
stores and home centers. (We
used 1/2-in. grommets for this repair.)
Determine exactly where you want
the grommet and mark the location.
The hole cutter in the kit has a
beveled edge that cleanly cuts a grommet
hole in the tarp (Photo 1).
Then sandwich the grommet and
washer around the tarp and pound
them together to complete the grommet
(Photos 2 and 3). Make sure the
punch is completely inserted through
the grommet post and into the center
of the anvil. Otherwise, the grommet
and washer won't seat together fully
and the anvil may be damaged.