FIG. 1 shows a right side view of an ax handle. FIG. 2 shows a front view thereof. FIG. 3 shows a bottom view thereof. FIG. 4 shows a top view thereof. FIG. 5 shows a left side view thereof. FIG. 6 shows a rear view thereof. FIG. 7 shows a bottom right side perspective view thereof; and, FIG. 8 shows a bottom left side perspective view thereof. The broken lines in the drawings are directed to environment and form no part of the claimed design.