This bend is made using flat nose pliers.
This bend is achieved using vise and hammering.
Alternatively, you can put a straight wire on the vice jaw, tighten the jaws, then bend the wire over the top to make a sharp bend, followed by hammering the wire over the vise jaws.
Stick one or two layers of masking tape on the jaws' surface to avoid or minimize tool marks on your wire when the jaws are tightened on the wire