Engineered with Multi-Air Cyclonic precision laser-cut technology and a P-grade, seeded-gel, ceramic alumina abrasive, Dry Ice Multi-Air Cyclonic A975 coarse grit paper H&L center hole vacuum discs last longer and cut cooler, faster and more consistently than any other paper discs. Crafted with a spiral vacuum hole, these discs help keep your work environment clean, while the water-based, non-pigmented stearate, No-Fil open coating eliminates color transfers and minimizes loading. A unique, fiber-reinforced, C-weight backing remains flexible while providing 50 to 60 percent greater tear strength, and the hook and loop back makes it easy to mount and change discs.