Which tool is specifically designed to trim away dead skin around the nails?

The correct answer is a nail nipper, as this tool is specifically designed for trimming away dead skin, particularly the cuticle and hangnails around the nails. Nail nippers have a small, precise blade that allows for controlled cutting, making them ideal for removing excess skin with minimal risk of injury.

In manicure practices, maintaining the health and appearance of the nail area is crucial, and nail nippers facilitate this by allowing technicians to carefully manage the cuticles and surrounding skin. This results not only in a cleaner and more polished look but also helps in preventing potential infections that can arise from torn or jagged skin.

The other tools listed have different purposes. A metal pusher is used for gently pushing back cuticles rather than trimming. Tweezers are generally utilized for picking up small objects or applying fine detail work but are not suitable for trimming dead skin. A disinfection container is important for sanitation and keeping tools clean but does not directly interact with trimming skin. Hence, the nail nipper stands out as the specialized tool for this specific task.