This reference disk is valuable because it is the only one possible to obtain medium grated vegetables (carrots, zucchini, etc ...) with your robot Bosch. Other discs grate too late (lint) or much too big ... Incidentally on the other side it also makes potato slices for gratin dauphinois. It is quite normal that Bosch does the book not original, and that we should spend more than 15 euros for this article (admittedly very good and very well packaged) manufactured in Slovenia ...