Abstract: The invention relates to a suspension including a set of abrasive grains and a binder, said suspension being characterized in that: the particle size fraction D40-D60 of said set of abrasive grains comprises more than 15 vol % and less than 80 vol % of grains having a circularity of less than 0.85, the percentiles D40 and D60 being the percentiles of the cumulative particle size distribution curve of grain sizes corresponding to the grain sizes enabling the separation of the fractions consisting of 40 and 60 vol % of the grains having the largest size, respectively; and the abrasive grains are more than 25 wt % and less than 49.5 wt % of said suspension.