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; power sawing equipment being parts of machines in the nature of high speed power saw blades; machines in the nature of power trench cutters; cutt...