Which item is NOT classified as equipment used in nail services?

In discussing the classification of items used in nail services, the correct answer emphasizes that the abrasive board is typically categorized as a supply rather than equipment. Equipment refers to tools that are often more durable and electric in nature, necessary for executing specific tasks in nail treatments.

The electric file, nail lamp, and cuticle nipper are classified as equipment because they serve fundamental roles in nail services—electric files and nail lamps are used for shaping and curing respectively, while cuticle nippers are essential for precise cuticle management. In contrast, abrasive boards are considered disposable and are primarily used for filing nails, making them more of a consumable supply rather than an enduring piece of equipment. Therefore, understanding these distinctions within the terminology of nail service tools is crucial for proper classification.