BDX flap discs are made with zirconium abrasive grit for high cutting capacity and fast material removal, along with an improved cotton cloth backing for improved flexibility and wear resistance. They provide a solution for all deburring applications at a competitive price. The unique zirconium abrasive has controlled grain fracture properties that continuously produce sharp new tips. They provide long life on both difficult materials such as steel and stainless steel and softer metals such as aluminum.