The ornamental design for a chisel tip, as shown and described.
FIG. 1 is an exploded right side view of a chisel tip adjacent a chisel body.
FIG. 2 is an exploded perspective view of the chisel tip adjacent a chisel body.
FIG. 3 is a top plan view of a chisel tip showing my new design.
FIG. 4 is a bottom view thereof.
FIG. 5 is a perspective view thereof.
FIG. 6 is a front view thereof, the rear elevation view being a mirror image; and,
FIG. 7 is a left side view thereof, the right side view being a mirror image.
The broken lines in FIGS. 1 and 2, depicting a chisel body, are for the purpose of showing environment and form no part of the claimed design. The broken lines in FIGS. 1 to 5 that depict screws and screw holes illustrate portions of the design that form no part of the claim.