The ornamental design for a workingend of a boot cleaning tool, as is shown and described.
FIG. 1 is a perspective view showing my new design;
FIG. 2 is a reduced perspective view thereof;
FIG. 3 is an enlarged first end view thereof;
FIG. 4 is an enlarged second end view thereof;
FIG. 5 is a first side view thereof;
FIG. 6 is a bottom view thereof;
FIG. 7 is a top view thereof; and,
FIG. 8 is a second side view thereof.
The broken lines showing the remainder of the handle in FIGS. 1, 2, and 4-8, a fastener in FIGS. 1-3, and a crutch tip in FIG. 2 form no part of the claimed design.