Optical measuring and presetting method for a combined measuring and presetting of a set of profile machining tools comprising a plurality of individual profile machining tools (10, 12, 48, 50, 52, 54, 56), wherein the individual profile machining tools (10, 12, 48, 50, 52, 54, 56) of the set of profile machining tools are realized as profiling wheels and/or profile polishing wheels and are configured for a successive machining of side edges of stone slabs, with at least one tool presetting and tool measuring apparatus, by means of which in at least one first tool measuring step an at least partly and/or at least section-wise concave-curved work contour, in particular milling contour or polishing contour, of a first profile machining tool of the set of profile machining tools is optically captured in an at least semi-automated manner by means of an optical measuring device, comprising a camera and a lighting, of the tool presetting and/or tool measuring apparatus, wherein in a first tool presetting step profile coordinates are assigned to the work contour of the first profile machining tool captured in the first tool measuring step, said profile coordinates being stored in a memory unit of the tool presetting and tool measuring apparatus, wherein in at least one second tool measuring step an at least partly and/or at least section-wise concave work contour, in particular milling contour or polishing contour, of a second profile machining tool of the set of profile machining tools is optically captured in an at least semi-automated manner at least by means of the optical measuring device, wherein in at least one second tool presetting step the profile coordinates of the second profile machining tool determined in the second tool measuring step are aligned with the profile coordinates of the first profile machining tool which were previously determined in the first tool measuring step, wherein in the second tool presetting step the profile coordinates of the work contour of the first profile machining tool are inputted as reference coordinates for a relative positioning of profile coordinates of the captured work contour of the second profile machining tool and are stored in the memory unit of the tool presetting and tool measuring apparatus, and wherein the profile data are configured to be outputted to a machine tool which, on the basis of the profile data, machines the stone slab successively with the profile machining tools (10, 12, 48, 50, 52, 54, 56). wherein the individual profile machining tools (10, 12, 48, 50, 52, 54, 56) of the set of profile machining tools are realized as profiling wheels and/or profile polishing wheels and are configured for a successive machining of side edges of stone slabs, with at least one tool presetting and tool measuring apparatus, by means of which in at least one first tool measuring step an at least partly and/or at least section-wise concave-curved work contour, in particular milling contour or polishing contour, of a first profile machining tool of the set of profile machining tools is optically captured in an at least semi-automated manner by means of an optical measuring device, comprising a camera and a lighting, of the tool presetting and/or tool measuring apparatus, wherein in a first tool presetting step profile coordinates are assigned to the work contour of the first profile machining tool captured in the first tool measuring step, said profile coordinates being stored in a memory unit of the tool presetting and tool measuring apparatus, wherein in at least one second tool measuring step an at least partly and/or at least section-wise concave work contour, in particular milling contour or polishing contour, of a second profile machining tool of the set of profile machining tools is optically captured in an at least semi-automated manner at least by means of the optical measuring device, wherein in at least one second tool presetting step the profile coordinates of the second profile machining tool determined in the second tool measuring step are aligned with the profile coordinates of the first profile machining tool which were previously determined in the first tool measuring step, wherein in the second tool presetting step the profile coordinates of the work contour of the first profile machining tool are inputted as reference coordinates for a relative positioning of profile coordinates of the captured work contour of the second profile machining tool and are stored in the memory unit of the tool presetting and tool measuring apparatus, and wherein the profile data are configured to be outputted to a machine tool which, on the basis of the profile data, machines the stone slab successively with the profile machining tools (10, 12, 48, 50, 52, 54, 56).