The ornamental design for a threadrestorertool, as shown and described.
FIG. 1 is a perspective view of a thread restorer tool showing my new design; wherein a knurled head is shown in broken lines and forms no part of the claimed design;
FIG. 2 is a left side elevation view thereof; the top and bottom plan views are not provided as they are duplicative images and the right side elevation view is a mirror image;
FIG. 3 is a front elevation view of FIG. 1;
FIG. 4 is a rear elevation view of FIG. 1;
FIG. 5 is another perspective view of the thread restorer tool, wherein a hexagonal head is shown in broken lines and forms no part of the claimed design;
FIG. 6 is a left side elevation view of FIG. 5; the right side elevation view is a mirror image;
FIG. 7 is a top plan view of FIG. 5, bottom plan view is not provided since it is a duplicative image;
FIG. 8 is a front elevation view of FIG. 5; and,
FIG. 9 is a rear elevation view of FIG. 5.
All broken lines illustrate portions of the thread restorer tool that form no part of the claimed design.