Determine the size of rivets required in your installation based on the load-bearing needs of your project. Blind rivets are produced in varying diameters and lengths.
Predrill a hole through the two materials you wish to join, using a drill bit that is the same diameter as the selected rivet. The thickness of the two materials pressed together must not exceed half the length of the rivet.
Insert the rivet mandrel (the long, thin end) into the rivet gun. Match the size of the rivet with the appropriate matching size marked on the head of the rivet gun. Insert the wide end of the rivet protruding from the gun into the predrilled hole.
Squeeze the handle of the rivet gun until the rivet's mandrel breaks off. When the mandrel has broken off, the rivet is firmly set in place.