Knife Cleaning Brush

FIG. 1 is a front, right and top perspective view of a knife cleaning brush, showing my new design; FIG. 2 is a rear, left and bottom perspective view thereof; FIG. 3 is a front view thereof; FIG. 4 is a rear view thereof; FIG. 5 is a left side view thereof; FIG. 6 is a right side view thereof; FIG. 7 is an enlarged top plan view thereof; FIG. 8 is an enlarged bottom plan view thereof; and, FIG. 9 is a front, right and top perspective view of the knife cleaning brush in an open state. The broken lines shown in the drawings illustrate portions of the knife cleaning brush that form no part of the claimed design.