The new and ornamental design for a cuttinginsert, as shown and described.
FIG. 1 is a perspective view of the cutting insert;
FIG. 2 is a top view of the cutting insert;
FIG. 3 is a bottom view of the cutting insert; and,
FIG. 4 is a side view of the cutting insert, the cutting insert having
identical side views in a front projection, a rear projection, a left side
projection and a right side projection.