Gator Flap Disc *Diameter: 4-1/2 in. *Arbor Size: 7/8 in. *Material: Zirconia Aluminum Oxide *Product Type: Flap Disc *Grit: 80 Grit *Grade: Medium *Number in Package: 1 pk *Usage: Used for removing large amounts of material and for shaping or smoothing wood, metal and masonry. *Grit Type: Coarse Removal *Discovery CON, NBR, SUP, EXP