Machine tools and parts thereof, namely, machine tools for processing of ferrous and non-ferrous metals, plastics, composites, carbides, ceramics, and nitrides, and power-operated hand-held tools, other than hand-operated, for cutting, drilling, grinding, sharpening, milling, and surface treatment; machine tool holders; hard material tools made of carbide, ceramic, nitride for use as attachments to machine tools; machines and apparatus for knife cutting, drilling, grinding, sharpening, millin...