The ornamental design for a constructiontool, as shown and described.
FIG. 1 is a perspective view of the construction tool of my new design.
FIG. 2 is an elevational view of the front side thereof.
FIG. 3 is an elevational view of the back side thereof.
FIG. 4 is a top plan view thereof.
FIG. 5 is a bottom plan I view thereof.
FIG. 6 is an elevational view of the right edge thereof, as seen in FIG. 1.
FIG. 7 is an elevational view of the left edge thereof, as seen in FIG. 1; and,
FIG. 8 is a perspective view of my construction tool, showing it mounted on rafters of a building under construction.
The broken line elements shown in FIGS. 2, 3, 6, 7, and 8, depicting rafters and bricks represent environmental considerations, and form no part of my new design.