you’ll notice that nail clippers contain several simple but effective design features.
The Curved Blade
The cutting edges on many fingernail clippers are slightly curved to follow the natural shape of the nail. Toenail clippers often have a straighter cutting edge because toenails tend to be thicker and flatter.
The Nail File
That small metal piece that folds out is usually a nail file. On many traditional designs, its pointed end can also be used to clean under the nails.
The Lever
The lever provides mechanical advantage, allowing the force
