What is a common tool used in cutting hair?

Clippers are a common tool used in cutting hair, particularly for achieving a variety of short hairstyles and fades. Their design allows for quick and efficient cutting, making them ideal for managing bulk hair removal and creating clean lines. They come with different guard sizes that help achieve various lengths, providing versatility for different styles and preferences.

In contrast, hair spray is primarily a styling product used to hold hair in place rather than a cutting tool. Round brushes are typically employed during blow drying to add volume and shape but do not serve the purpose of cutting hair. Combs, while useful for detangling and sectioning hair, are not intended for cutting but rather for guiding the scissors or clippers during the cutting process. This makes clippers the most suitable and effective choice among the options for the specific task of cutting hair.