The ornamental design for handle for handheld tool, as shown and described.
FIG. 1 is a front perspective view of a handle for handheld tool showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a top view thereof; and,
FIG. 5 is a bottom view thereof.
The handle for handheld tool has a generally cylindrical, elongate shape defined by an upper neck portion, an enlarged shoulder portion, and a lower grip portion. The lower grip portion has a plurality of spaced apart protuberances. The handle for handheld tool is hollow to receive a portion of a handheld tool therein.