The ornamental design for a holster for tools, as shown and described.
FIG. 1 is a perspective view of a holster for tools showing our new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a rear elevation view thereof including a dashed out belt;
FIG. 5 is a left side elevation view thereof;
FIG. 6 is a right side elevation view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken lines in all figures showing a clasp illustrate portions of a holster for tools that form no part of the claimed invention. The broken lines in FIGS. 2, and 5-8 showing a logo outline illustrate portions of a holster for tools that form no part of the claimed invention. The broken lines in FIG. 4 outlining a belt show environmental matter and illustrate matter that forms no part of the claimed design.