The ornamental design for a tool handle, as shown and described.
FIG. 1 is a ¾ perspective view of the tool handle according to the invention.
FIG. 2 is a front elevation view of the invention of FIG. 1.
FIG. 3 is a rear elevation view of the invention of FIG. 1.
FIG. 4 is a left side elevation view of the invention of FIG. 1.
FIG. 5 is a right side elevation view of the invention of FIG. 1.
FIG. 6 is a top plan view of the invention of FIG. 1; and,
FIG. 7 is a bottom plan view of the invention of FIG. 1.
The broken lines are included for the purpose of illustrating the environment in which the claimed invention is being used, which form no part of the claimed design.