GET MORE CUTTING POWER: The ABN 3-Inch Angle Grinder Flap Disc 60 Grit Grinding Wheel 10-Pack is a flap wheel kit that is a blend of zirconia and aluminum oxide grain that allows the die grinder sanding disc to self-sharpen for a more powerful, abrasive cut on carbon and mild steel applications REDUCE VIBRATIONS: One-sided zirconia flap disc constructed from resin fiber with a fiberglass backing plate to offer extra strength and absorb vibrations without smudges or smears during use; Grinding disc is semi-open to reduce loading on aluminum surfaces 60 GRIT TO REMOVE HEAVIER STOCK: Angle grinder sanding wheel is designed for working on flat surfaces; These 60 grit flap disc wheels are coarser in build to easily remove heavier stock, smoothing out or blending autobody paint, deburring, removing rust, leveling, stripping, buffing, light grinding, and prepping or finishing flat work surfaces such as stainless steel, aluminum, and non-ferrous metal; Avoid forcefully pushing down on flap disk to prevent wear or damage