front milling Turning of the miller with simultaneous table feed. With the aid of a fibre-tip pen, one can see the development of a turning comma during the rotation of the miller. description ordernumber 348 see also: single-cylinder air compressor forces on the wedge pneumatics: 3/2-, 4/2- and 5/2-port directional control valves Path-measuring system (made-up of two models)