Precision machine tools, namely, hard metal tools, poly crystalline diamond (PCD) tools, for use in the cutting and forming of materials by others, in particular in the fields of road grinding and floor polishing; Polycrystalline diamond compact (PDC) drill bits for grinding and polishing machines; abrasive devices, namely, diamond power saw blades and power sawing equipment being parts of machines in the nature of high speed blades, saws, and power cutters composed of cutting devices and power grinding devices; machines in the nature of power cutters; cutting machines, grinders being power tools, and machine components for road and pavement grinding and marking machines, and floor polishing machines