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3M™ Cubitron™ II Fibre Disc 982C uses 3M Precision-Shaped Grain to generate up to twice the cut-rate, durability, and life of other fiber discs when grinding carbon steel - all with less grinding pressure required by the operator. That means less operator fatigue, faster throughput, and more parts per disc when tackling medium and high-pressure grinding applications. 3M Precision-Shaped Grain maintains super-sharp points that cut exceptionally fast with less pressureDisc life is significantly longer, completing more parts per disc and requiring fewer disc changesReduces changeouts and downtime in manual, robotic and pressure-assisted applicationsTriangular shaped ceramic grain lasts up to two times longer than other ceramic abrasives-it wears evenly, runs cool, and optimizes mineral breakdownStiff fiber backing and a strong resin bond provide durability and tear-resistance for heavyweight applications such as high-pressure weld grinding and beveling