This clause of IEC 60204-1 is applicable except as follows: Replacement: This part of IEC 60204 applies to electrical@ electronic and programmable electronic equipment and systems of machine tools not portable by hand while working@ including a group of machines working together in a co-ordinated manner. In this part of IEC 60204@ machine tools means all machines for the working of metal@ wood@ plastics and stone@ operating by forming or removal of material. The following list includes examples of machine tools but not limited to: ?C Turning machines (i.e. manually controlled turning machines without numerical control@ manually controlled turning machines with limited numerically controlled capability@ numerically controlled turning machines and turning centres@ single ?C or multi-spindle automatic turning machines); ?C Milling machines(including boring machines); ?C Machining centres; ?C Planing machines; ?C Drilling machines; ?C Grinding machines; ?C Laser processing machines; ?C Electro Discharge Machines(EDM) (except their power circuit for discharge); ?C Sawing machines for cold metal; ?C Guillotine shears; ?C Hydraulic press brakes; ?C Mechanical (or hydraulic@ pneumatic) presses. Power circuits where electrical energy is directly used as a working tool are excluded from this part of IEC 60204. In addition to this document@ the applicable C-standard for the machines listed in the examples can be referred for more information.