Drill is a versatile fabric that has been used in a variety of applications. It is stout durable cotton fabric with a strong diagonal bias in the weave. Drill can be used unbleached, although it is more often bleached or dyed. Light weight drill is used in clothing items such as shirts, safari jackets, blouses, and sports clothing. The heavier weights were often used in corsets, and are commonly used in work clothing and uniforms.