features:<br />-  and high quality.<br />- fiber backed sanding discs for angle grinders.<br />- tensile strength， wear resistance particularly strong.<br />- ideal for surface rust， deburring， paint， polished welds and so on.<br />- for finishing & sanding of wood， metal etc.<br /><br />specifications:<br />material: aluminum oxide<br />max. 80m/s<br />dimension: <br />outer diameter: 100mm/4" ， 115mm/4.53"<br />inner diameter: 16mm/0.63"， 22.2mm/0.87"<br />grits: 24， 36， 40， 60， 80， 100， 120<br /><br />packaged included:<br />50 x grinding discs