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9" x 20" Aluminum Oxide J Weight Sanding Belts 9" x 20" Aluminum Oxide X Weight Sanding Belts
Aluminum Oxide grain with a flexible "J" weight full cotton backing in an open coat to prevent premature loading. Full resin bond. Engineered for use on soft woods like pine, fir or spruce and non-ferrous metals including aluminium, copper, lead, nickel, tin, titanium and zinc, and alloys such as brass.  Suitable for profile work and sanding contours or curves.
Aluminum Oxide material with an "X" weight backing specifically engineered as an open coat with approximately 30% less grain coverage. This provides gaps in the material to prevent loading and is best used on soft woods like pine, fir or spruce.