The ornamental design for a tool handle, as shown and described.
FIG. 1 is a perspective view of my tool handle;
FIG. 2 is a side view thereof;
FIG. 3 is another side view thereof, opposite the side view shown in FIG. 2;
FIG. 4 is a front view thereof;
FIG. 5 is a back view thereof;
FIG. 6 is a top view thereof; and,
FIG. 7 is a bottom view thereof.
The dashed lines outside of the claimed tool handle represent environmental structure that forms no part of the claimed design; specifically, some such dashed lines show aspects of an example tool (a ratchet) with which the claimed tool handle may be used. Other dashed lines show that while a logo may (but need not) be used with the claimed design, no particular logo is claimed. The dashed line border just inside the claimed boundary of the front surface portion and back surface portion shown completely in FIG. 6 and partially in FIGS. 1-3 and 5 indicates no claim to the appearance of that surface.