Norton Blaze Multi-Air Cyclonic 97508 6 in. P180 Grit Vacuum Sanding Disc 50 ct. Featuring Multi-Air Cyclonic precision laser cut technology, a spiral vacuum hole design, and a P grade, sharp edged ceramic alumina abrasive, Blaze Multi-Air Cyclonic A995 fine grit paper H&L center hole vacuum discs last longer and minimize work area contamination while cutting cooler, faster and more consistently than other paper discs.