The ornamental design for the wrench, shown and described.
FIG. 1 is a perspective view of a wrench according to the invention;
FIG. 2 is a front view of the wrench of FIG. 1;
FIG. 3 is back view of the wrench of FIG. 1;
FIG. 4 is a right-side view of the wrench of FIG. 1
FIG. 5 is a left-side view of the wrench of FIG. 1;
FIG. 6 is a top-side view of the wrench of FIG. 1; and,
FIG. 7 is a bottom-side view of the wrench of FIG. 1.
The broken lines are included for the purpose of illustrating the environment in which the claimed invention is being used, which form no part of the claimed design.