What is the primary tool used for nail trimming?

The primary tool used for nail trimming is nail clippers. This tool is specifically designed to cut nails cleanly and efficiently. Nail clippers have a sharp cutting edge that allows for a precise and controlled trim, reducing the risk of splitting or tearing the nail.

While other tools like the nail file, cuticle pusher, and emery board serve important functions in nail care, they are not intended for trimming nails. The nail file is primarily used to smooth and shape the edges of the nail after it has been trimmed. A cuticle pusher is designed to push back and shape the cuticles around the nail, which is important for nail health but does not contribute to the actual trimming of the nail itself. The emery board is used for filing and refining the nail's shape or surface rather than cutting it. Thus, nail clippers are the essential tool for nail trimming due to their design and functionality.