BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an endodontic file, according to one example embodiment of the present invention; FIG. 2 is a cross-sectional view of the endodontic file illustrated in FIG. 1, taken along lines A-A; FIG. 3 is partial side view of an endodontic file, according to another example embodiment of the present invention.