7 lathes, in particular precision lathes; conventional lathes, in particular precision lathes; servo-conventional lathes, in particular precision lathes; cycle-controlled lathes, in particular precision lathes; computer-numerically controlled lathes, in particular precision lathes; clamping devices for workpieces in machine tools, in particular chucks, face chucks, collets, cam clamps; clamping devices for tools in machine tools, in particular collets, quick-change holders, chucks; machine parts for machine tools, in particular steady rests, tailstocks, protective covers, grinding units, drilling units, milling units, thread cutting units, thread milling units; workpiece handling units for machine tools; pneumatic and/or hydraulic controlling and actuating devices for machine tools