The ornamental design for a closuretool, as shown and described.
FIG. 1 is a top left isometric view of a closure tool of my new design;
FIG. 2 is a bottom right isometric view of the closure tool shown in FIG. 1;
FIG. 3 is a front elevation view of the closure tool shown in FIG. 1; The rear elevation view of the design of FIG. 1 is identical to FIG. 3;
FIG. 4 is a right side elevation view of the closure tool shown in FIG. 1; The left side elevation view of the design of FIG. 1 is identical to FIG. 4;
FIG. 5 is a top plan view of the closure tool shown in FIG. 1; and,
FIG. 6 is a bottom plan view of the closure tool shown in FIG. 1.
The broken lines show portions of the closure tool that form no part of the claimed design.
Neither the portions inside the broken dash lines nor the broken dash lines themselves forms any part of the claimed design.