3M Sandpaper combines everything you need for exceptional sanding in your auto body projects. Tough, long-lasting aluminum oxide abrasive in a range of grits is built on light, medium and heavy paper backing for finishing jobs large and small. Bonded construction increases durability and resists clogging for longer sheet life. Sandpaper is ideal at every stage of the 3M Body Repair System.3M Precision Shaped Grain Sandpaper is a premium abrasive sheet that is built specifically for hand sanding on jobs such as shaping auto body filler or putty. 3M Precision Shaped Grain is designed with sharp, angular structures that continuously fracture to form sharp points and work harder as you sand. As a result, 3M's Precision Shaped Grain sandpaper lasts 5X longer than conventional 3M abrasives.