The ornamental design for an axehead, as shown and described.
FIG. 1 is a front perspective view of an axe head showing my new design;
FIG. 2 is right side elevation view thereof;
FIG. 3 is left side elevation view thereof;
FIG. 4 is a front elevation view thereof;
FIG. 5 is a rear elevation view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a front perspective view, showing the claimed design in use.
The broken line showings of an axe handle in FIGS. 1-8 and halligans in FIG. 8 are for the purpose of illustrating the environment in which the design is associated and form no part of the claimed design.