The ornamental design for a toolhandgrip having a lighting device, as shown and described.
FIG. 1 is a front elevational view of a tool handgrip having a lighting
device showing my new design; the rear elevational view, the top plan view
and the bottom plan view being idential to that shown;
FIG. 2 is an enlarged right side elevational view thereof;
FIG. 3 is an enlarged left side elevational view thereof; and,