Drilling the wells – For embedding posts, e.g.. For fencing, deeper holes with a small diameter are required. Digging them with a spade is inconvenient. Better to use a tin drill. You can make it yourself by welding a spiral-shaped sheet metal section to the mandrel. After making one turn, pull the auger up and pour out the soil. For proper digging with this tool, it is enough to weld only one full roll of the metal sheet of the appropriate diameter.