There are many different types and styles of foot files (also called rasps) that have been designed for use on a client’s feet. The most popular kind resembles a grater but has been designed for use on feet. Attached is a photo example of one type. An internet search will reveal many other examples.
Callus shavers, credo blades, and food/cheese graters could not be used in a service provided in a cosmetic art shop or school in NC. For more information click the link below to read the rule.