3M 3M Aluminum Oxide Depressed-Center Wheel - 24 Grit Very Coarse Grade - 4 1/2 in Diameter - Thickness 1/4 in - 92314 60440098139

3M depressed-center wheel uses aluminum oxide as the abrasive material and has a diameter of 4 1/2 in. 3M incorporates this aluminum oxide material into the depressed-center wheel forming a grit of 24. In addition to the other aspects of these parts, another important component of these is the thickness. This 3M part is 1/4 in thick. All abrasive products that rotate or spin, such as the ones in this category, have a maximum speed at which you can run them. This 3M depressed-center wheel can be run at a maximum speed of 13300 RPMs.