The ornamental design for a dual-sided livestock grooming tool, as shown and described.
FIG. 1 is a top perspective view of a dual-sided livestock grooming tool showing our new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a front elevational view thereof;
FIG. 6 is a rear elevational view thereof;
FIG. 7 is a bottom perspective view thereof; and,
FIG. 8 is an enlarged detail view of the encircled area in FIG. 1.
The structural features depicted by broken lines in the drawings have been shown for the purpose of illustrating portions of the dual-sided livestock grooming tool that form no part of the claimed design.