FIG. 1 is a front view thereof;

FIG. 2 is a back view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a perspective view thereof;

FIG. 8 is an enlarged view of the handle portion taken from FIG. 7;

FIG. 9 is a front view of a second embodiment of a toolbox;

FIG. 10 is a back view of the second embodiment thereof;

FIG. 11 is a top view of the second embodiment thereof;

FIG. 12 is a bottom view of the second embodiment thereof;

FIG. 13 is a right side view of the second embodiment thereof;

FIG. 14 is a left side view of the second embodiment thereof;

FIG. 15 is a perspective view of the second embodiment thereof;

FIG. 16 is a front view of a third embodiment of a toolbox;

FIG. 17 is a back view of the third embodiment thereof;

FIG. 18 is a top view of the third embodiment thereof;

FIG. 19 is a bottom view of the third embodiment thereof;

FIG. 20 is a right side view of the third embodiment thereof;

FIG. 21 is a left side view of the third embodiment thereof;

FIG. 22 is a perspective view of the third embodiment thereof;

FIG. 23 is an enlarged view of the third embodiment thereof;

FIG. 24 is a front view of a fourth embodiment of a toolbox;

FIG. 25 is a back view of the fourth embodiment thereof;

FIG. 26 is a top view of the fourth embodiment thereof;

FIG. 27 is a bottom view of the fourth embodiment thereof;

FIG. 28 is a right side view of the fourth embodiment thereof;

FIG. 29 is a left side view of the fourth embodiment thereof; and,

FIG. 30 is a perspective view of the fourth embodiment thereof.

The broken line shown in the drawings are directed to environment, and are for informational purposes only and form no part of the claimed design.