I want to buy one CBN wheel. I will use my other white aluminum oxide grinding wheels: a 120-grit wheel and a 60-grit wheel for shaping for now. I think I like the 1.5 inch wide and 220 grit CBN. Does anyone think this will be a good plan? Also, how do steel CBN wheels compare to aluminum wheels besides weight? Thanks so much. Roger Davis. SMWT see you all tomorrow nite.