... used widelysuitable for normal steel grinding, grinding, rough grinding, higher anti-pulls Intensity metal grinding as well, i.e.White ... redSharp cutting, good edges holdout, durableSuitable for form grinding, knives, Measuring instrumentGreen silicon carbideGCgreenOnly no harder than ... side wheel,type 6 straightcup wheel,type 7 recessed two sides wheeltype 8 taper cup wheel, type 9 dish wheel)Material ...