We claim the ornamental design for a surgical handpiece, as shown and described.
FIG. 1 is a right-side perspective view of the surgical handpiece of the present invention;
FIG. 2 is a left-side perspective view of the surgical handpiece;
FIG. 3 is a front view of the surgical handpiece;
FIG. 4 is a back view of the surgical handpiece;
FIG. 5 is a right-side elevation view of the surgical handpiece;
FIG. 6 is a left-side elevation view of the surgical handpiece;
FIG. 7 is a top elevation view of the surgical handpiece;
FIG. 8 is a bottom elevation view of the surgical handpiece; and,
FIG. 9 is a left-side elevation view of the surgical handpiece associated with a needle tip and sleeve.
The broken lines shown in the surgical handpiece are for portions that form no part of the claimed design. The broken lines which illustrate a needle tip and sleeve in FIG. 9 are for the purpose of environment only and form no part of the claimed design.