7 Mechanically operated tools, namely, tools for machine tools, namely, drills, borers, reborers, reamers, cutters; mechanical cutting tools, namely, drills, borers and reborers, superfinish turning tools, sink and countersink cutters, turning tools, plug-in drills, thread-cutters, milling cutters, reamers, sink and countersink cutters combined with reamers, and reamers with fixed and adjustable diameters, the aforesaid tools in particular with integrated or removable cutter bars and reborers, and integrated or removable reaming cutters of hard cutting materials; tool holding fixtures and adapters for mechanical tools, namely, spindle flange attachment, taper shanks, chucks, lengthening and reducing pieces for drills, borers and reamers; modular mounted drills, borers and reamers with couplings being points of intersection and separation, for the manual and mechanical coupling of tools with tools, machine tool spindles and parts of tools; machine tool aligning holders with adjustable concentricity; machine tool suspended holders for alignment and angle compensation; accessories for mechanical tools, namely, drill cutting inserts, indexable and throwaway drill cutting inserts, turning tools, cutting rings and machine tool dies of hard cutting materials; single-component machine tool holders with integrated or replaceable cutters, in particular throwaway carbide indexable insert cases, turning tools, tool and assembly inserts and holders, and precision inserts; supporting, guiding, setting and clamping elements for drilling machine tools, namely, clamps, bolts, holders and screws; mechanical equipment and devices being accessories for machine tools for regrinding and resharpening friction tools, cutters, cutting rings and disposable heads; clamping holders for modular points of intersection and separation constructed as hollow shanks, and structural pails therefor; adjusting machines and gauges without electric/electronic components for adjusting, aligning and regulating mechanical tools; structural parts for mechanically operated tools and tools for machine tools for all the aforesaid