SAIT® 52436 Fiber Disc, AO Aluminum Oxide, 4-1/2 in dia, 7/8 in Arbor, 36 grit, 13,300 Max rpm, 100 ea

Resin over resin construction for a strong bond that is resistant to heat and moisture. Vulcanized fiber backing for heavy duty sanding. Bulk Spindle Packaging: Assures that each disc remains perfectly flat. The unique design offers the convenience of easy access and can be retightened to ensure that your discs are flat when you need them. (Note: Part Numbers 52716 and 52724 are 50 pieces per spindle). Blue Line™ Packaging: Used for retail packaging in convenient smaller quantities. UPC bar coded.