Mechanically operated tools, in particular tools for machine tools, modular attachment tools including boring tools, core drills, super finish boring machines, friction tools, counter bore and deburrer tools, lathe tools, plunging tools, tapping and threading machines, milling cutters, manually and mechanically adjustable tools, plane turning tool heads, tool sheaths for machine tools in particular spindle adapters, spindle attachment faceplates, taper shanks, chucks, lengthening and reduction parts for tools, mechanical special tools and their parts, modular couplings as interfaces and disconnects for the connection of tool parts mutually and/or with tool bench spindles, tool bench spindles, automatic tool change-overs for machine tools, tool control equipment for resetting and adjusting of tools; all the foregoing being mechanically operated tools, attachments for mechanically operated tools or parts and components of mechanically operated tools