The ornamental design for a grillcleaninghead, as shown and described.
FIG. 1 is a perspective view of the grill cleaning head;
FIG. 2 is a perspective view from a different angle of the grill cleaning head;
FIG. 3 is a front view thereof;
FIG. 4 is a back view thereof;
FIG. 5 is a top view thereof;
FIG. 6 is a bottom view thereof;
FIG. 7 is a left side view thereof;
FIG. 8 is a right side view thereof;
FIG. 9 is a perspective view of the grill cleaning head attached to a handle and of a crumpled piece of foil that is ready for placement on the grill cleaning head; and,
FIG. 10 is a perspective view of the grill cleaning head holding a crumpled piece of foil and attached to a handle.
The broken lines showing of the crumbled piece of foil and handle in FIGS. 9 and 10 illustrate environment and does not form a part of the claimed design.