auger and bit
In order to drill a hole in various materials such as soil (particularly loose or mulchy) and wood some essential tools were designed, including the auger and bit. Primarily, an auger is made to drill or dig into the ground but this makes it indispensable for such tasks as tree planting,fence-post installation and collecting samples of soil. Technically, an auger is made up of a spiral flighting that picks up the drilled material - as well as a bit, which is the cutting edge that bites into this material. The bit's form, often pointed or with snail-shaped tips, changes for different usages and kinds of soil or wood where it's being used. This machine is applied in numerous fields, including construction, agriculture and forestry as well as mining where fast efficient boring of holes is essential.