The ornamental design for handpiece for wax shaping tool, as shown and described.
FIG. 1 is a top, front and right-side perspective view of a hand piece for wax shaping tool showing my new design;
FIG. 2 is a right side elevational view, the left side view being a mirror image;
FIG. 3 is a top plan view;
FIG. 4 is a bottom plan view;
FIG. 5 is a front elevational view;
FIG. 6 is a rear elevational view;
FIG. 7 is a cross-sectional view as taken from line 7--7 of FIG. 2; and,
FIG. 8 is a cross-sectional view as taken from line 8--8 of FIG. 2.
The broken-line showings of FIGS. 1 and 2 are environmental only and form no part of the claimed design.