What is the function of ballpeen hammers?

Ballpeen hammers are primarily used in metalworking for tasks such as shaping and bending metal, as well as striking chisels and other tools. The flat side of the hammer is used for striking, while the rounded "peen" side is ideal for creating indentations, shaping metal, or peening rivets. Their design allows for precision work and is commonly used in fabrication, automotive, and blacksmithing applications.