The ornamental design for a benchblock, as shown and described.
FIG. 1 is a left perspective view of the bench block of the present invention;
FIG. 2 is a right perspective view of the bench block of the present invention;
FIG. 3 is a front elevation of the bench block of FIG. 1. The rear elevation is substantially identical;
FIG. 4 is a left elevation of the bench block of FIG. 1. The right elevation is substantially identical;
FIG. 5 is a top plan view of the bench block of FIG. 1. The bottom plan view of the bench block is hidden during ordinary use and forms no part of the present invention; and,
FIG. 6 is a top plan view of the base of the bench block of FIG. 1. The portion encompassed in broken lines is hidden during ordinary use of the invention.
The part of FIG. 6 shown within a broken-line perimeter, as well as the broken line perimeter itself, illustrates a portion of the bench block that forms no part of the claimed design.