FIG. 1 is a perspective view of our first embodiment of a design for a rotary blade;

FIG. 2 is a top plan view of the embodiment of FIG. 1, wherein the bottom plan view is a mirror image;

FIG. 3 is a top plan view of a second embodiment of a rotary saw blade wherein the bottom plan view is a mirror image; and,

FIG. 4 is a top plan view of a third embodiment of a rotary saw blade wherein the bottom plan view is a mirror image.

The broken lines of FIGS. 1-4 indicate components for illustrative purposes only and form no part of the subject design.