The jaws of round nose pliers are largest near the pivot and taper to a point at the tip, however both jaws are entirely circular. These are used for many tasks in wirework, such as creating loops (lollipop and wrapped loops), eye pins, clasps and jump rings. The perfect tool for making coils and curved bends.
The nylon covers on the jaws of these pliers protect your wire from any marking by the jaws.