The ornamental design for a toolshelf, as shown and described.
FIG. 1 is a front, right, and top perspective view of a tool shelf, showing my design, wherein the dot-dash broken line circle is for the purpose of illustrating the boundary of the enlarged view of FIG. 9 and forms no part of the claimed design.
FIG. 2 is an another perspective view thereof.
FIG. 3 is a front elevation view thereof.
FIG. 4 is a rear elevation view thereof.
FIG. 5 is a left side elevation view thereof.
FIG. 6 is a right side elevation view thereof.
FIG. 7 is a top plan view thereof.
FIG. 8 is a bottom plan view thereof; and,
FIG. 9 is a partial enlarged view of an area labeled 9 in FIG. 1 outlined by the dot-dash broken line.
The broken lines in the drawings depict portions of the tool shelf that form no part of the claimed design.