The A290 fine grit paper H&L vacuum disc offers outstanding durability and fast cutting with its P-graded aluminum oxide abrasive. It features a flexible, fiber-reinforced C-weight latex-saturated backing for added strength. The open coat and water-based stearate No-Fil coating, along with vacuum holes, help prevent loading. Ideal for dry sanding and finishing aluminum, composites, fiberglass, and wood, it includes a hook and loop backing for easy installation.