Grit (P80): A medium-coarse rating that indicates approximately 80 abrasive particles per square inch. The “P” prefix confirms it follows the FEPA (European) standard for grit consistency.
Material: Typically made from aluminum oxide, a durable synthetic abrasive that “self-sharpens” by exposing new sharp edges as it breaks down.
Design: These are round, often 5-inch (125mm) discs with a hook-and-loop (Velcro) backing for easy attachment to random orbital or disc sanders.
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