The ornamental design for a hingedbenchgrindersupport, as shown and described.
FIG. 1 is a front elevation view of a hinged bench grinder support showing my new design with an upper portion and lower portion separated for clarity;
FIG. 2 is a rear elevation view thereof;
FIG. 3 is a right elevation view thereof, the opposite side being a mirror image of the shown;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof; and,
FIG. 6 is an isometric view of the hinged bench grinder support shown in an environment of use.
The broken lines in the drawings depict environmental subject matter only and form no part of the claimed design.