I have not good success with the plier snap tool, I purchased the snap sources set the instructor from a class used this and it worked for her have not tried it yet, but what works for me with great success is the snap set and plier from the baby department the snaps that you put on baby clothes and bags, I love it and that works for me. The only thing the snaps are plastic and come in different colors again this set is used on baby clothes, but it works.