Asymmetric terebrating digging tool with lateral displacement slide surface and pivoting leg

A dirt digging tool comprising:

• (a) one or more asymmetrical heads, each of said asymmetrical heads including
• (i) an upper end having first and second peripheral side edges which are generally parallel to said longitudinal axis,
• (ii) a lower end spaced apart from said upper end, said lower end having a ground engaging edge,
• (iii) a face extending over said upper and lower ends, and said upper end extending downwardly to said lower end to define said head's longitudinal axis;
• said lower end's ground engaging edge including
• (iv) a first convex arcuate peripheral edge which extends upwardly from said tip to said first peripheral side edge,
• (v) a second convex arcuate peripheral edge spaced apart from said first arcuate peripheral edge, said second convex arcuate peripheral edge having an end point spaced longitudinally apart from and positioned above said tip and below said upper end of said head, and said second convex arcuate peripheral edge extending upwardly from said end point to said second peripheral side edge, and
• (vi) a straight edge which extends from said tip upwardly to said end point, said straight edge being straight and extending parallel to said head's longitudinal axis.