To use hog ring pliers, you need to first set the gap of its jaws. Adjust the screw in the pliers and twist it so as to make a wider gap. Pull the handles and set the pliers to the area that you want to tighten. Close the hog ring while holding the pliers so as to apply pressure to enable you do the connection. Read more at http://www.ehow.com/how_6006024_use-hog-ring-pliers.html.