3M 33391 Cubitron II 3" 60 Grit Roloc Discs Grinding Metal Repair Paint 15/Box

3M Cubitron II 33391 Premium Quick Change Grinding Discs, 3 in Dia, 60+ Grit, Ceramic Abrasive, 20000 rpm, Purple, 15 discs. Part No.: 33391. MFR Model: 33391. 3M Precision Shaped Grain – a tough, hard, sharp ceramic abrasive – is resin-bonded to a stiff fiber backing.