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The Norton Redheat 7" x 5/16" disc delivers professional-grade performance for edge sanding applications. Engineered with a 100-grit abrasive surface, this disc efficiently removes material and smooths transitions on hardwood floors and similar surfaces. The 5/16" arbor hole ensures secure mounting on compatible edger sanders. Built to withstand demanding job site conditions, the Redheat line combines durability with consistent cutting action, making it an ideal choice for contractors seeking reliable, long-lasting sanding discs that maintain performance throughout extended use cycles.