FIELD: metal working. SUBSTANCE: abrasive tool has housing provided with a layer of abrasive material on its end face, bushing with openings for supplying fluid arranged on the second end face of the housing, cone that is mounted on the bushing from the side of the abrasive layer for permitting axial movement and used for directing fluid, and screw vanes that are mounted on the bushing above the cone. The abrasive layer has curved grooves of variable cross- section spaced at a same distance from each other. EFFECT: enhanced efficiency. 4 dwg
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