The ornamental design for an electrictool handle, as shown and described.
FIG. 1 is a top and left side perspective view of an electric tool handle embodying my new design;
FIG. 2 is front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a left side elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a bottom and right side perspective view thereof.
The broken lines in the drawings illustrate portions of the electric tool handle and environmental electric tool that form no part of the claimed design.