The 092K1 Standard Root Auger Set, Bi Partite. Near undisturbed soil samples can be taken in layers of 15 cm (6 inch). Total sampling depth 2 m (6.5 ft.). A complete root coring system. Plant rooting is one of the most important areas of plant health and there is no better way to gauge this important plant feature than with a good set of root cores. Useful for viewing root growth (depth and concentration) of the root systems of trees and plants. Also useful for localizing physical and/or chemical barriers in the soil profile.