FLAP DISC 4-1/2"40G U-CS *Brand Name: Diablo *Sub Brand: Steel Demon *Size: 4-1/2 in. *Material: Premium Zirconium Blend *Attachment Style: Bolt-On *Product Type: Flap Disc *Product Type Range: Power Sanding Accessories *Grit: 40 Grit *Grit Range: 40 to 60 Grit *Grade: Ultra Coarse *Number in Package: 1 pk *Compatibility: Angle Grinders *Arbor Size: 7/8 in.*Maximum Revolutions Per Minute: 13280 rpm *Hub Type: 29 *Discovery SUP