The small round hole typically found at the tip of the lever on a standard nail clipper serves both an engineering purpose during production and a convenient everyday function.
1. The Manufacturing Role (Assembly Pin)
During the mass-production process, a metal pin or rivet is used to hold the multiple pieces of the clipper together—anchoring the top lever, the pivot post, and the bottom base plate into one cohesive, tensioned unit. The hole is often a byproduct of the tooling, stamping, or die-casting process used to mold and secure these metallic components together.
2. The Practical Everyday Use (Keychain or Lanyard)
For the end user, the most common utility of that hole is portability. Because nail clippers are small and easily lost in drawers, travel bags, or bathroom cabinets, the hole allows you to thread a keyring, small chain, or lanyard through it. This makes it easy to clip to your keys or hang up for compact storage.
