Grinder attachment for a stand mixer

FIG. 1 is a top-front perspective view of a grinder attachment for a stand mixer according to our design;

FIG. 2 is a bottom-back perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a back elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a left side elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

Broken lines show portions of the article that form no part of the claimed design. Dash-dot lines represent bounds of the claimed design and form no part of the claimed design.