3M 3M Green Corps Ceramic Depressed-Center Wheel - 36 Grit Very Coarse Grade - 4 1/2 in Diameter - 7/8 in Center Hole - Thickness 1/4 in - 55992 60440126146

3M Green Corps depressed-center wheel uses ceramic as the abrasive material and has a diameter of 4 1/2 in. 3M incorporates this ceramic material into the depressed-center wheel forming a grit of 36. 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.