What is a mandrel used for in manicure services?

A mandrel is an essential tool used in manicure services primarily for mounting abrasive materials, such as sanding bands or files, which are then used for filing nails. This tool enables manicurists to achieve a more efficient and effective filing process because it provides a sturdy and stable base for the abrasive material. As the mandrel spins, it allows the nail technician to shape the nail or smooth out rough edges with precision.

In contrast, the other options refer to different tools or techniques used in manicure services. Applying nail polish requires a separate brush or applicator, while cutting the nail would involve clippers or scissors. Cleaning under the nail usually necessitates the use of specific cleaning tools like a nail brush or an orange wood stick. Hence, the unique functionality of the mandrel in mounting abrasives solidifies its crucial role in achieving high-quality nail care and maintenance.