Why is the rotation speed so slow / Why does it feel like it’s filing very slowly of Nail File NC02?

Thank you for sharing your experience. The NC02 is designed to prioritize gentleness, safety, and control, so it will feel slower than traditional nail clippers or high-speed nail tools. This is generally not a malfunction. We recommend pairing it with a suitable grinding pad and using light, short, and repeated strokes for grooming, which will provide a more stable overall experience.