Abracs Proflex grinding discs offer heavy duty abrasive grinding, professional performance and outstanding product life. All Abracs grinding discs are manufactured to European safety standards and marked with EN12413. Proflex grinding discs are an incredibly good value product with an exceptional cost per cut ratio. For use on mild steel, iron, sheet steel and high grade steel. Metal cutting discs with depressed centre; abrasive grade: A24RBF.For use on: mild steel, iron, sheet steel, high grade steel. Size: 115mm x 6mm x 22mm bore. Max 13,200rpm.