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

Keypad fastener: “We can put the key ring in the small hole,” which allows the nail clip to stay hooked safely. This ensures that you will not lose the nail clipper unless the entire key ring is lost.
Wire folding: Insert a wire into the small round hole to fold it easily. “You only need a small amount of force,” which is more certain than using your fingers.
Alternative to the screwdriver: