;) Soil boring test is the procedure of using a hand auger or rotary drill rig to keep a soil sample from below the surface of the land. The resulting hole in the subsurface is also called a soil boring. By creating a soil boring, you can keep exchange soil samples from below ground.
The depth of a soil boring is limited only by the ability of the apparatus that you use to create the hole. For example, a hand auger relies on the strength of the operator to advance the tool and cannot go as deep as a rotary drilling rig that uses engine power to advance the augers.
The depth of the sample that you are trying to receive will dictate the type of tool that you should use. :wanwan008: