The invention is a multidirectional auger bit mounted on an auger head, and includes a base portion having a distal end that protrudes in an axial direction of the auger head, and leg portions that is continuous with the base portion. The base portion includes a flat portion that is continuous with the leg portion, first inclined portions that are inclined from the flat portion toward a distal end side in the axial direction of the auger head, left and right side surface portions that are continuous from the first inclined portion, and a second inclined portion that is inclined from the first inclined portion toward a leg portion side in the axial direction of the auger head.