3M?s Cubitron II Abrasive Fibre Discs is built for faster cutting of welds as well as grinding, weld blending, deburring and other tough metal finishing jobs. 3M Precision Shaped Grain ? a tough, sharp ceramic abrasive ? is resin-bonded to a stiff fiber backing. This disc lasts significantly longer than conventional ceramic grain discs, delivering a lower cost per grind with fewer disc changes.