Vortec Pro Abrasive Flap Discs 4.5 80 Grit 5/8 Arbor 13 000 rpm Alum Back Weiler Vortec Pro Abrasive Flap Discs WARNING: This product can expose you to Silica a chemical known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov Tool Shape: Type 29 Speed [Max]: 13 000 rpm Abrasive Material: Zirconium Hub Material: Zinc Used With: Right Angle Grinder Arbor Diam [Nom]: 5/8 in Applications: Grinding; Finishing; Weld blending; Deburring Arbor Thread - TPI or Pitch: 5/8 in - 11 Body Material: Aluminum Backing Wt.: 3.2 lb Mounting: Threaded Hole Dia. [Nom]: 4 1/2 in Grit: 80 Applicable Materials: Steel; Most Metals; Cast Iron; Non-Ferrous Soft Metal