Cutter Knife

FIG. 1 is a top, front and right side perspective view of a cutter knife, showing my new design;

FIG. 2 is a right side elevation view thereof;

FIG. 3 is an enlarged front elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.