The ornamental design for a surgicalhandpiece, as shown and described.
FIG. 1 is a top front perspective view of a surgical handpiece;
FIG. 2 is a left side elevational view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a top plan view thereof; and
FIG. 5 is a bottom plan view thereof.
FIG. 6 is a front elevational view thereof; and,
FIG. 7 is a rear elevational view thereof.
The outermost broken lines depicting the circles in FIGS. 1, 4, 6 and 7 represent the bounds of the claimed design while all other broken lines, including the arrow in FIGS. 1 and 6, are directed to environment and are for illustrative purposes only; the broken lines form no part of the claimed design.