The Edelman auger is typically designed to allow for a minimum of friction during penetration into the soil and the extraction of the auger from the soil. This design means less physical effort on the part of the user. If you want to achieve optimal results, you should always choose your auger type according to the soil type in question.
This auger is based on the sand type. However, the blades have extra wings. This forms an almost closed auger that will firmly keep hold of loose soils (such as coarse sand or very dry and sandy soils).
This bayonet style auger bit is used with T-handle and extension rods which are sold separately.