Professional sanding discs for commercial or occasional use For use with a 9" angle grinder / sander 40 grit aluminium oxide disc Perfect for removing rust, grinding off welds, parting lines on casting and carbon steels or removing rough edges on most surfaces The high grain adhesion is for a long life which outlasts conventional sanding discs With these flap discs there is no backing disc required it fits directly onto an angle grinder Goggles should always be worn when using this tool This listing is for a pack of 2 9" discs SPECIFICATIONS • 230mm x 22.2mm disc • 9" x 7/8" disc (so suitable for 9" grinders) • Max RPM - 6,600 RPM • 40 grit aluminium oxide disc • Pack size - 2pc