The ornamental design for a dustcollectionattachment for saw, as shown and described.
FIG. 1 is a top view of a dust collection attachment for saw.
FIG. 2 is a bottom view of the dust collection attachment for saw of FIG. 1.
FIG. 3 is a front view of the dust collection attachment for saw of FIG. 1.
FIG. 4 is a rear view of the dust collection attachment for saw of FIG. 1.
FIG. 5 is a left side view of the dust collection attachment for saw of FIG. 1.
FIG. 6 is a right side view of the dust collection attachment for saw of FIG. 1.
FIG. 7 is an isometric view of the dust collection attachment for saw of FIG. 1.
FIG. 8 is another isometric view of the dust collection attachment for saw of FIG. 1; and,
FIG. 9 is a further isometric view of the dust collection attachment for saw of FIG. 1.
Portions of FIGS. 1 through 9 are shown in broken lines and dash-dot-dash boundary lines illustrating portions of the article that form no part of the claimed design.