3M 051144 21791 5 Imperial Stikit 6" 120 Grit Film Disc Roll3M 051144 21791 5 Imperial Stikit 6" 120 Grit Film Disc Roll Features:• Aluminum Oxide is known for toughness, long life and good value• While not as hard, as other Silicon Carbide, it is suitable for ferrous metals• Aluminum Oxide is a general purpose material suited for ferrous metals• Paper Backing is lower priced alternative to cloth backed abrasives• "F" weight• 6" discs• No holes• 120 Grit• A sub-model of 3M 363L
first aid for the pediatric boards second edition first a
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