Professional calcined aluminium oxide flap discs for commercial or occasional use Stronger and a lot more abrasive disc than most standard flap disc 4-1/2” sanding discs For use with 4-1/2” (115mm) angle grinders and sanders Bonded back plate and Zirconia abrasive for quick and efficient removal Perfect for smooth grinding, no dents, no burrs and no discolouration 40 grit coarse flap disc Coarse flap discs This listing is for a pack of 100 flap discs Aluminium oxide flap discs for maximum strength and durability Perfect for removing rust, grinding of welds, parting lines on casting and carbon steels or removing rough edges on most surfaces Suitable for work on metal, wood and plastic The high grade adhesion is for a long life which outlasts conventional sanding discs With these particular flap discs there is no backing required it fits directly onto an angle grinder Maximum speed 13,300 RPM EN 13743 approved Type 29 flap discs which means when on the angle grinder it can work at a 30 degree angle (this allows you not to have to angle the grinder as much and cover a larger area quicker) More flatter than most standard flap discs SPECIFICATIONS • Calcined aluminium oxide flap discs • 40 grit – coarse flap disc • Size of the disc – 115mm x 22.2mm (4-1/2”) • Maximum RPM – 13300 • Type 29 flap disc • Complies with EN13743 standards • Pack size – 100 Pack