The Norton 23589 is a 6-inch, 40-grit coarse-sanding disc with a velcro attachment (formerly part of the Blue Magnum line, now part of the Norton BlueFire H875P series). Featuring a self-sharpening zirconia alumina abrasive and a heavy-duty E-weight latex/paper backing, it is designed for stripping body filler, fiberglass, and wood.
