The ornamental design for a shockabsorber for powertool, as shown and described.
FIG. 1 is a right perspective view of a shock absorber for power tool showing the new design.
FIG. 2 is a left perspective view thereof.
FIG. 3 is a front view thereof.
FIG. 4 is a rear view thereof.
FIG. 5 is a right side view thereof.
FIG. 6 is a left side view thereof.
FIG. 7 is a top view thereof; and,
FIG. 8 is a bottom view thereof.
The broken lines immediately adjacent the shaded areas represent the bounds of the claim and all other broken lines represent portions of the design that form no part of the claim.