Ceramic blend is the most commonly used abrasive. Bestsuited for general purpose deburring and blending, it is tough, economical, and fractureresistant. Commonly used on ferrous alloys, hightensile materials, and wood. Paper backing materials are durable and commonly used in automotive and woodworking applications. Coated abrasives can be used from sanding to polishing for most applications. They consist of a thin layer of abrasive adhered to film, paper or cloth. Specifications. Material Aluminum Oxide. Grit 150. Grit Type Fine. Country of Origin Canada. Size 3 x 9 in.. Weight 0.127 lbs