The ornamental design for a cuttinghead, as shown and described.
FIG. 1 is a perspective view of a cutting head according to the present invention;
FIG. 2 is an elevated front view of the cutting head of FIG. 1;
FIG. 3 is an elevated rear view of the cutting head of FIG. 1;
FIG. 4 is a right side view of the cutting head of FIG. 1;
FIG. 5 is a left side view of the cutting head of FIG. 1;
FIG. 6 is a top view of the cutting head of FIG. 1;
FIG. 7 is a bottom view of the cutting head of FIG. 1; and,
FIG. 8 is a perspective view of the cutting head of FIG. 1 attached to a handle.
The broken lines in the figures merely illustrate the environment for the cutting head of the present design and therefore form no part of the claimed design.