For some reason the only hammer most people recommend for setting a rivet is a ball peen hammer. I never really put much thought into it so assumed that this was the only hammer for the job. The problem with this hammer is that it can not get into tight places. This was a problem when I had to set the rivet on the portfolio. As you can se the hasp prevents the hammer to hit the rivet all the way around.
After seeing this video Riveting Basics Tutorial | Jewelry Tips with Nancy I got on ebay and found a riveting hammer (pretty obvious name). I was tired of the hammer being too big so I bought the smallest I could find and ended up whit this:
This hammer turned out to be way too small. I then went to the local hardware store and found a cheap cross peen hammer:
Here your see how small the hammer is:
Another major problem is than when you set the rivet on a flat anvil the soft head of the brass rivet gets a flat spot. To avoid this I found this little fellow:
Solid Brass Dapping Block
I sanded the surface down a bit as the holes were to big for the rivet. I also put a green mark next to the hole that fit the rivet. It has several sizes of holes so it should fit all sizes of rivets with a round head.
To avoid scratching the leather I put the block in a plastic bag:
After that setting a rivet was a breeze: