Sealey Assorted Grit Flap Discs Zirconium Ø115mm Ø22mm Bore FD115MIXDBZirconium flap discs for descaling, rust removal, weld preparation, weld cleaning and general surface preparation. More durable than normal sanding discs. Display box contains three 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. Zirconium flap discs for descaling, rust removal,