Ever noticed the small round hole on your nail clipper and wondered why it’s there? It isn’t a random design quirk — it’s a clever, century-old solution for portability. The hole allows you to attach your clipper to a keychain, hook, or lanyard so it doesn’t vanish into the depths of a drawer or travel bag. You can even link your fingernail and toenail clippers together or hang them neatly on a bathroom rack.
The idea dates back to the late 1800s, when clippers were meant to be carried everywhere — long before modern bathrooms were common. That simple circle made grooming tools secure and easy to transport. Over time, the design stuck, proving that great engineering doesn’t need to be flashy. A single, tiny hole turned an everyday tool into a timeless example of practical innovation.