Faithfull Abrasive Jumbo Flap Discs contain up to 40% more abrasive than standard flap discs, providing a considerably longer working life. Manufactured from long lasting Zirconia Alumina. Resin bonded for extra strength and durability. Designed for use with most angle grinders of the corresponding size. Ideal for use on wood, metal, plastic and stainless steel. Ref: UTTK10820