... self-sharpening, best elasticity, excellent polishing and grinding efficiency, low grinding heat and no loading, dressing easily.Resin bond ... 10,16,203,4,51A1753,4,6,8,103,4,51A1805,6,8,10,12,16,203,4,51A11003,4,5,6, ... 8,10,12,16,203,4,5,61A11253,4,5,6,8, ... ,10,12,16,20,25,32,40,503,4,5,6,8,10,151A135012,15,16,20, ... 25,32,40,503,4,5,6,8,10,151A140010,12,15,16, ...