SPEED HUB FLAP DISC 40G *Brand Name: Diablo *Sub Brand: Steel Demon *Diameter: 4-1/2 in. *Arbor Size: 5/8 in. *Material: Zirconia *Style: Speed Hub *Product Type: Thread Arbor Flap Disc *Grit: 40 Grit *Number in Package: 1 pk *Grade: UltraCoarse *Maximum Speed: 12000 rpm *Discovery SUP