Dynabrade, Inc. Dynabrade Type 27 Coated Alumina Zirconia Flap Disc - 40 Grit - 4 1/2 in Diameter - 7/8 in Center Hole - 77757 77757

Dynabrade coated Type 27 flap disc uses alumina zirconia as the abrasive material and has a diameter of 4 1/2 in. Dynabrade incorporates this alumina zirconia 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 Dynabrade flap disc can be run at a maximum speed of 13000 RPMs. The Dynabrade flap disc uses fiberglass for the backing plate.