perspective view of the edger blade assembly of the invention.FIG. 9 is a side view of a second embodiment of the edger attachment apparatus of the invention, wherein the second embodiment has a height adjustment feature.FIG. 10 is a cross-sectional view of the embodiment of the invention shown in FIG. 9 taken along line 10???10 thereof.FIG. 11 is a side view of a third embodiment of the edger att