Push the grommet up through the hole in the tarp. Now you need to set these two items over the hole you made on the anvil that came with the grommet set. Make sure the grommet is set around the whole you just cut. Place a washer face down over the top of the anvil. At this point you are ready to put the two pieces together.
Put the grommet punch inside the grommet tube that came with the kit. Center this over the grommet pieces and the truck tarp that are in position over the anvil. Strike the tube with the hammer, then turn the tube a quarter turn and hit it again. Repeat this step 3 or 4 more times. That’s it!