3M Cubitron II Roloc Durable Edge Disc 947A has a name that precedes it. This disc reflects the benefits of Cubitron II and Roloc products ??coupling the sharp, consistent cutting action of Cubitron II discs with an easy-to-use Roloc attachment. Built for durability and strength, it's great for edge work, because it stands up to edges without tattering or fraying.