temper wire is flexible and well-suited for creating components with sharp
angles or that need to maintain their shape under moderate stress, such as ear
wires, jump rings, or weight-bearing parts of wire-wrapped jewelry. When used
to create an element like a clasp, which will be subjected to high stress, it
should be hardened after shaping. This can be done by placing it on an anvil or
bench block and striking it with a nylon-jaw hammer.