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3M Regalite 40 Grit sandpaper delivers aggressive material removal for heavy-duty sanding applications. This coarse-grit abrasive excels at stripping finishes, leveling surfaces, and preparing substrates for subsequent finishing steps. The durable Regalite mineral construction resists fracturing, extending product life and reducing replacement frequency. Ideal for woodworking, drywall preparation, and general fabrication work where rapid stock removal is essential. Professional-grade performance at a competitive price point.