3M 769F Coated Type 29 Aluminum Oxide/Ceramic PSG Purple Flap Disc - 40+ Grit - Coarse - 4 1/2 in Diameter - 7/8 in Center Hole - 05906

3M coated 769F Type 29 flap disc uses aluminum oxide/ceramic psg as the abrasive material and has a diameter of 4 1/2 in. 3M incorporates this aluminum oxide/ceramic psg material into the flap disc forming a grit of 40+. All abrasive products that rotate or spin, such as the ones in this category, have a maximum speed at which you can run them. This 3M flap disc can be run at a maximum speed of 13300 RPMs. The 3M flap disc uses fiberglass for the backing plate.

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