Sait 57113 3" x 18" 320-Grit Aluminum Oxide - Closed Coat Sanding Belt 10pk1A-X/2A-X (Aluminum Oxide, Closed Coat). Semi-friable (1A-X)/heat-treated(2A-X) aluminum oxide grain on a X-weight cotton backing. For general purpose grinding and finishing of ordinary and alloyed steels, ferrous and non-ferrous metals, cast iron and wood.
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