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

Alternative to the screwdriver: The small metal part often used to clean nails can also be used as a screwdriver for small screws. “You can use this little sheet of iron to unscrew the screw” when other tools are not available.
Box opening: The sharp tip of the nail file can be used to “cut the tape on shipping boxes”, providing an alternative tool for opening packages. Nail clippers are more versatile than most people realize, offering practical solutions beyond just nail trimming.