Metal Desk Grommet 4-5/8" Satin Aluminum Finish with Brushes Satin Aluminum Metal Desk Grommet. We suggest buying one before cutting any holes. Fits a 4-3/8 inch x 4-3/8 inch square hole. Depth is 1-1/16 inches. Flange is 3/16. Overall grommet is 4-5/8 inches x 4-5/8 inches Black Brush covers wire opening