Portable electric grinder

FIG. 1 is a front view of a portable electric grinder, showing our new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a right side view thereof, the left side view of the article forming no part of the claimed design.

The structure depicted by means of broken lines in the figures has been shown for illustrative purposes only and forms no part of the claimed design.