The “little round hole” of the nail clipper has special and powerful uses

Screwdriver alternative: The small metal piece often used to clean fingernails can also be used as a screwdriver for small screws. “You can use this small iron sheet to unscrew the screw” when other tools are not available.
Opening cans:

The sharp tip of the nail file can be used to “cut tape off shipping boxes,”
providing an alternative tool for opening packages. Nail clippers are more versatile than most people realize, offering practical solutions beyond just trimming nails.