Gator Grit 25 Count 9" x 11"150 Grit Fine Emery Cloth. The 150 grit fine emery cloth is designed to sand and finish steel, copper piping, brass, iron, aluminum and stainless steel. The crocus cloth can be used on either a hand or machine sander. If using an orbital sander, the crocus cloth can be cut into a 1/2 sheet, 1/3 sheet, or 1/4 sheet to fit the sander.