Premium Zirconia Flap Sanding Disc Grinding Wheel 4-1/2 x 7/8" 40 Grit 40Grit Zirconia Flap Discs Flap Discs are made from zirconia , designed for high speed sanding and heavy duty removal, delivering fast and long lasting cut. Zirconia abrasive provides extended service life and more cutting power than aluminum oxide, saving replacement costs and sanding time. Abrasive disc is made with fiberglass backing which supports a fast cut for grinding and finishing applications; offers extra durability and reinforcement. Overlapped abrasive strips offer more efficient sanding effect and longer service life than conventional fiber discs. Wide Application .
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