The ornamental design for a powertool, as shown and described.
FIG. 1 is a right side elevational view of a power tool showing my new design;
FIG. 2 is left side elevational view showing the design for the power tool of FIG. 1;
FIG. 3 is a top elevational view showing the design for the power tool of FIG. 1;
FIG. 4 is a bottom elevational view showing the design for the power tool of FIG. 1.
FIG. 5 is a front elevational view showing the design for the power tool of FIG. 1; and,
FIG. 6 is a rear elevational view showing the design for the power tool of FIG. 1.
The broken line showing of portions of the power tool in the drawings is included for illustrative purposes only and forms no part of the claimed design.