Abstract: A sheet working machine has a working station, a tool driving system which is connectable with a tool for mechanical working of plate-shaped workpieces, a chain-like rotatable tool magazine arranged for receiving a plurality of tools, at least one tool exchange device provided for withdrawing tools from the tool magazine and inserting the same in the working station and vice versa, the working station having at least two tool receiving systems formed so that for driving a tool they are selectively connectable with the tool driving system, so that one of the tool receiving systems which is not connected with the tool driving system is bringable in connection with the at least one tool exchange device arranged near the working station for performing a tool exchange, the chain-like tool magazine being guided at least in the region of the working station at a height corresponding to that of the working station.