Step 5: Closures : Rivet
Use a punch, awl, any sharp pointy object (carefully) to create a hole in the first layer.
Fold the flap of leather behind and using the first hole as a guide, punch a hole through the other side.
Lining up the holes, place the bottom part or the rivet on the back, and the top of the rivet on the front.
Carefully place the top rivet on the anvel part of the rivet setter, line up the setting punch and give one to three firm whacks, just until the rivet holds.
Be careful when hitting the setter, as the rivet can deform and shift.
Feed the key ring through the loop.