Our 3M™ Hookit™ gold disc 216U is precision-coated for long life and exceptionally smooth finishing to auto body sanding projects. It features light A weight paper backing with sharp, durable aluminum oxide abrasive - a fast, aggressive cut, yet a uniform finish for feather-edging and primer sanding. Our load-resistant coating and available five or six-hole pattern provide superior dust-resistance. Open coat construction means the abrasive grains on our 3M™ Hookit™ gold disc 216U are placed with space between them to help evacuate sanding dust and other debris to avoid clogging the cutting edge of the grains. The load-resistant coating on the abrasive grains also allows the disc to continue cutting even when sanding paints and other materials that would otherwise clog the disc and hinder sanding ability. All of this adds up to increased productivity and reduced material consumption.