The ornamental design for a tool for crimping a rigid coupling on a flexiblehose, as shown and described.
FIG. 1 is a front elevational view of a tool for crimping a rigid coupling
on a flexible hose showing my new design, the undisclosed rear elevational
view being a mirror image of the front elevational view;
FIG. 2 is a top plan view thereof;
FIG. 3 is a left side elevational view thereof;
FIG. 4 is a right side elevational view thereof; and