FLAP DISC 4-1/2" 40G *Brand Name: Diablo *Sub Brand: Steel Demon *Diameter: 4-1/2 in. *Arbor Size: 7/8 in. *Material: Zirconia *Product Type: Flap Disc *Grit: 40 Grit *Number in Package: 1 pk *Grade: Ultra Coarse *Maximum Speed: 13280 rpm *Discovery SUP