Professional flap discs for commercial or occasional use 4-1/2" sanding / rust removal discs For use with 4-1/2" (115mm) angle grinders and sanders 40 grit flap discs 40 Grit so a really coarse sanding disc Aluminium oxide construction for strength and durability Suitable for work on metal, wood and plastic Perfect for removing rust, grinding of 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 required, it fits directly onto an angle grinder Goggles should be worn using this tool This listing is for 10 flap discS SPECIFICATIONS • 115mm x 22.2mm disc • 4.5" x 7/8" (dimensions) • Maximum speed 12,300 RPM • 80 m/s • Pack size - 10pc • Grit - 40 Grit