Aluminium oxide flap disc for descaling, derusting, weld preparation, weld cleaning and general surface preparation. Pack contains four different levels of abrasion, for assorted applications and finishes. Abrasive flaps are attached to rigid disc with epoxy adhesive - does not require backing pad. Depressed centre discs suitable for electric and air tools. Aluminium oxide flap discs for descaling, derusting, weld preparation, weld cleaning and general surface preparation. Pack contains four different levels of abrasion, for assorted applications and finishes. Abrasive flaps are attached to rigid disc with epoxy adhesive - does not require backing pad. Depressed centre discs suitable for electric and air tools.