3M coated 577F Type 27 fldisc uses alumina zirconia as the abrasive material and has a diameter of 4 1/2 in. 3M incorporates this alumina zirconia material into the fldisc forming a grit of 36. 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 fldisc can be run at a maximum speed of 13300. The 3M fldisc uses fiberglass for the backing plate. Features: Sale Unit: DISC Brand: 3M Abrasive Type: Coated FlDisc Type: Type 27 Disc Diameter: 4 1/2 in Item Dimensions: 6. 4" L x 5. 8" W x 6. 2" H.
