Sait 50103 7" x 7/8" 50-Grit Specialty Silicon Carbide Fiber Discs 25pkSait 50-Grit Specialty Silicon Carbide Fiber Discs. Silicon carbide grain. Closed coat structure for more material removal. Glass, marble, ceramic, hard cast iron. Ferrous and/or non-ferrous metals. Tech Info: Resin over resin construction for a strong bond that is resistant to heat and moisture. Vulcanized fiber backing for heavy duty sanding.
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