Cubitron™ II 33380 786C Series Fiber Disc, 2 in Dia, 80+ Grit, 25000 rpm, Purple. 3M™ precision shaped Grain - a tough, hard, sharp ceramic abrasive - is resin bonded to a stiff fiber backing. Cubitron™ II cuts 30% faster and lasts 2X longer than conventional ceramic abrasives.
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