3M is fundamentally a science-based company- We produce thousands of imaginative products and we're a leader in scores of markets - from health care and highway safety to office products and abrasives and adhesives- Our success begins with our ability to apply our technologies - often in combination - to an endless array of real-world customer needs- Of course all of this is made possible by the people of 3M and their singular commitment to make life easier and better for people around the world-Cubitron II Fibre Discs are made with revolutionary 3M precision-shaped ceramic grain technology, engineered with ultra-sharp, fast-cutting points that wear evenly, run cool and optimize mineral breakdown to maximize disc life- Start with Cubitron?II fibre discs for heavy stock removal and use the same tool/accessories to quickly change over to Scotch-Brite? light grinding and blending discs for your finishing need Dia. 9 in Arbor Diam 7/8 in Grit 36 Speed 6600 rpm [Max] Standard Case Pack 25 per inner box, 100 per case.