Gator Precut sanding sheets are specifically designed for power tool sanding. These sheets are made with zirconium oxide, a fast-cutting and durable grain, for ultimate performance. The high quality abrasive and heavy weight paper makes these sheets ideal for sanding on wood, metal, fiberglass & painted surfaces. General purpose sanding on wood, metal, fiberglass and painted surfacesFits 1/4 sheet clamp-on palm sandersThe tough zirconium oxide grain runs cooler and stays sharper longer, extending the life of the sanding sheetThe double resin bonding system resists heat and humidity, extending the life of the sanding sheet