I claim the ornamental design for a knife blade surgical tool, as shown and described.
FIG. 1 is a top perspective view of the knife blade surgical tool;
FIG. 2 is a top plan view of the knife blade surgical tool shown in FIG. 1;
FIG. 3 is a right side elevation view of the knife blade surgical tool shown in FIG. 1, wherein the left side elevation view is a mirror image of this FIG. 3;
FIG. 4 is a front elevation view of the knife blade surgical tool shown in FIG. 1, wherein the rear elevation view is a mirror image of this FIGS. 4; and,
FIG. 5 is a bottom view of the knife blade surgical tool shown in FIG. 1.
The broken line showing of the ribbed circular connecting feature depicts environmental subject matter and forms no part of the claim. All other broken lines in the drawings depict portions of the knife blade surgical tool that form no part of the claimed design.