Abstract: A grinding wheel includes a wheel supporting body and an abrasive material covering at least a circumferential surface of the wheel supporting body, radially outer portions of axially spaced side surfaces thereof and transitional areas between the circumferential and side surfaces. The wheel supporting body is formed of first and second partial bodies that are axially movable relative to each other. Each first and second partial body has on the outer periphery thereof a plurality of circumferentially spaced projections separated by respective axial grooves. The projections of each partial body fit within the grooves in the other partial body, such that the projections of the two bodies alternately mesh in a tooth-like manner and segmentally define the circumferential surface, the radially outer portions of the side surfaces and the transitional areas therebetween. The abrasive material is provided on the projections.