In one sentence, describe what the following article is about:

A rotary grater consists of a handle connected to a circular grating compartment. A side crank is then rotated to grate the cheese. Raise the top handle of the grater, place a small block of cheese into the compartment, and lower the handle. Grip the handle normally with your other fingers. For example, if you need to make nacho dips or breakfast casseroles, use a rotary grater.

Summary:
Slice your cheese using a rotary grater. Apply some pressure to the top of the handle with your thumb. Rotary graters are safer as your hands are not required to press against the plates.They are also very efficient and are best reserved for making large quantities of shredded cheese.