An auger is a spiral-shaped drill bit used to drill holes in the ground, as well as other surfaces or materials such as wood, and plastic. They come in a variety of shapes and sizes, and they are used for several applications. An Auger is primarily used to drill clean holes in a single drilling process. Timber construction, framing, making wooden furniture, gardening, drilling holes for planters, and other professional woodworking jobs require the use of an auger bit. Auger drill bits are mainly used to drill deep holes.