Grinding wheel for surface cutting of workpieces

A grinding wheel having an axis and an inner and outer circumference, and a grinding surface extending in a plane perpendicular to the axis of said wheel for surface machining of workpieces, said wheel comprising a carrier body and an annular abrasive lining attached to said carrier body and defining said plane grinding surface, said abrasive lining comprising a plurality of individual separate hexagonal and equilateral grinding portions which have been attached one after the other to said carrier body such that, when attached, some sections of said individual grinding portions had projected radially and/or outwardly beyond said grinding wheel circumferences and said and/or radially outward projecting sections have been removed by machining whereby after machining, the grinding portions along the inner and/or outer circumferences are no longer complete equilateral hexagons.