What is a common tool used to shape the nails?

The nail file is commonly used to shape the nails because it is specifically designed to smooth and contour the edges of the nails, allowing for a polished and well-groomed appearance. Nail files come in various materials, such as emery boards, glass, or metal, and they can have different grits to accommodate various shaping needs.

Using a nail file helps prevent splitting or tearing since it allows for precise shaping without damaging the nail structure. Nail files can also be used to create various shapes, such as square, round, or oval, depending on the desired look.

In contrast, a nail buffer is more focused on smoothing the nail surface and adding shine, while a nail art brush is used for applying designs or nail art, and cuticle scissors are intended for trimming cuticles rather than shaping the nail itself. Each of these tools serves a different purpose in nail care, which is why the nail file is the most appropriate choice for shaping nails.