2 pieces press stud setter with 1 metal disc base. These 3 pieces tool set is to fix 8- 12mm press studs. To use, pre punch hole and fix dome through to spring stud. Position stud dome on the concave base and hammer the flaring setter placed on the dome leg to secure. To secure the stud cap, centralise the leg on the opposite side of the metal disc base and hammer in the cap inserted into the hole of the setter tool.
To avoid tools damage strike with leather mallet over the metal base.
Press stud parts identification: Top left spring stud. Right picture Stud cap
Bottom left stud dome. Bottom right leg