The ornamental design of a droppreventiontoolholsterpouch, as shown and described.
FIG. 1 is a perspective view showing my new drop prevention tool holster pouch;
FIG. 2 is a left side view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a rear view thereof;
FIG. 6 is a top side thereof; and,
FIG. 7 is a bottom view thereof.
The broken lines on the inside of the perimeter of the pouch in the drawing depict stitching which is part of the claimed design. The broken lines on the outside of the perimeter of the pouch depict environmental subject matter only and form no part of the claimed design.