3M Aluminum Oxide Sandpaper 9003NA, 9 in. x 11 in., Coarse Grit, 4 Per Pack, Open Stock. 3M sandpaper comes in a variety of minerals and a wide grit range. This medium-grit aluminum oxide sandpaper is a general purpose abrasive that can be used on painted surfaces, bare wood and metal.
- Also available in flexible sanding sponges for flat and contoured surfaces like raised panel doors, cabinets or windows
- Choose a block sanding sponge or for hard to reach areas, like corners; try 1 of the angle sanding sponges
- Be sure to sand with the grain of the wood
- Always work through a sequence of grits, from coarse to very fine