The instrument used to trim cuticle is

The instrument commonly used to trim cuticles is nippers. Nippers are designed with a sharp edge that allows for precise cutting, making them particularly effective for removing excess cuticle tissue around the nails. When performing manicures, it's essential to ensure that the cuticle area is clean and well-groomed, and nippers provide that necessary ability to effectively manage and trim the cuticles without damaging the surrounding skin or nail.

While other tools are associated with manicure processes, such as the cuticle pusher, which is used to push back the cuticles rather than trim them, or the nail brush, which is for cleaning the nails, they do not serve the purpose of cutting. Clippers are primarily used for trimming the length of nails and do not have the precision needed for cuticle care. Therefore, nippers are the most appropriate tool for trimming cuticles, emphasizing their specific functionality in nail care.