7 Cutting, grinding and polishing instruments made by incorporating diamonds, namely, cutting tools in the nature of diamond-incorporated concrete and stone cutting tools, grinding tools in the nature of grinding tool attachments for grinding machines, polishing tools in the nature of polishing discs for stone profiling and edges, power grinding saw blades, grinding cups in the nature of diamond-incorporated grinding discs, power grinding wheels, power polishing wheels and polishing pads all for use with power machines and all used to cut, grind and polish tiles and stones both natural and man-made