The ornamental design for a cuttinginsert, as shown and described.
FIG. 1 is a perspective view a cutting insert showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a cross sectional view taken along line 8-8 in FIG. 2.
The broken lines illustrate environmental subject matter only and form no part of the claimed design. The dash-dot-dash broken lines define the boundary of the claimed design and form no part of the claimed design. Surface shading lines in the drawings depict the character or contour of the surfaces represented and are not separate elements of the claimed design.