3M 05779 Hookit 8" Disc PadTAPERED EDGES: Easily sand contoured surfaces with 45 degree tapered edges MULTI PURPOSE: Use up to 10,000 maximum RPMs for a variety of high speed sanding jobs VERSATILE: The 5 16 24 external mounting thread makes it compatible with dozens of brands' 6 inch sanders DURABLE: Medium density foam provides firm backing with enough flex to handle gentle curves and body lines For industrial occupational use only. Not for consumer sale or use