This tutorial will show you how easy it is to install a jean button (not a snap) using a kit and a hammer.
The kit comes like this. You supply the jeans and a hammer.
You've got a button, the button back, 2 sizes of white caps and the plastic setter apparatus.
Place your white caps into each end of the setter apparatus.
Now set your button and the button back into the white caps. All tucked in!
It should look like this, with the button on top and the button back on the bottom.
Mark button placement on your jeans, then position the loaded setter apparatus with the fabric in the middle, like a sandwich. Make sure at this point you are on a surface that will withstand a hammer. I go to the cement floor in my garage. Holding everything in position, begin to hammer the layers from the top.
And you're done! Nice professional finish :)