The ornamental design for a polesaw handle, as shown and described.
FIG. 1 is front perspective view of a polesaw handle according to the present invention.
FIG. 2 is a rear perspective view thereof.
FIG. 3 is a bottom perspective view thereof.
FIG. 4 is a front view thereof.
FIG. 5 is a rear view thereof.
FIG. 6 is a left side view thereof.
FIG. 7 is a right side view thereof.
FIG. 8 is a top view thereof; and,
FIG. 9 is a bottom view thereof.
The superimposed areas encased in broken lines, shown in the drawings, illustrate portions of the polesaw handle and form no part of the claimed design.