The ornamental design for a tool handle for a torque wrench, as shown.
FIG. 1 is a first side view of a tool handle for a torque wrench showing the new design;
FIG. 2 is a second side view, rotated 180° from the first side view, thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom view thereof;
FIG. 5 is a third side view, rotated 90° in a clockwise fashion from the top from the first side view, thereof;
FIG. 6 is a fourth side view, opposite the third side view and rotated 90° in a counterclockwise fashion from the top from the first side view, thereof; and,
FIG. 7 is a perspective view of the first and third sides thereof.