The copper rivets are the most durable rivet we stock for leather projects that require more rugged strength. However because of their rugged look, they are used for projects that are more utility in nature. They do not have the nice finished look as other rivets that are more fashionable. To set these copper rivets, first punch a hole in the leather to slip the post through. Put the base of post on a metal anvil or solid metal surface. Put the washer on top of the post and take the part of the copper rivet setter that has the hole in it to hammer the washer down over the post tight against the leather. Snip the rivet post about 1/8 inch above the washer with plier cutters. Take a metal hammer and slightly flatten the top of the post. Then take the rivet setter part that has the small concave indentation and mushroom a smooth post edge over the washer.
Make sure the copper rivet setter is for the same thickness of copper rivets. For example a #9 rivet setter is used for #9 copper rivets. The copper rivet setter has in one end a hole for forcing the washer down and a concave section for mushrooming the post.