A method for providing at least two bending tool groups (14, 15) for producing workpieces made of sheet metals, in particular by forming the sheet metals in a bending operation, in which the following steps are performed - providing a fist bending machine with a first upper press beam and a first lower press beam, - providing at least a second bending machine with a second upper press beam and a second lower press beam, - providing at least one tool storage with a plurality of bending tools, in particular bending punches and bending dies, accommodated therein for forming at least one cooperating bending tool group (14, 15) for at least one of the bending machines (2, 3), - providing at least one bending tool changing device, which bending tool changing device is configured to transport the bending tools of the cooperating bending tool group (14, 15) between the tool storage and in each case one of the bending machines (2, 3), - providing a bending tool data memory, in which bending tool data memory the respective current location for each individual one of the bending tools is stored, - providing a bending tool disposition determining device, which bending tool disposition determining device is configured to determine a first bending tool disposition information based on a first product information and at least one second bending tool disposition information based on a second product information, - assembling at least a first bending tool group comprising multiple bending tools by picking the bending tools intended therefor from the tool storage according to the first bending tool disposition information determined by the bending tool disposition determining device, - transporting the at least one first bending tool group from the tool storage to the first bending machine by means of the bending tool changing device, and arranging the at least one first bending tool group at the first press beam (6, 7) of the first bending machine, - updating the respective new locations in the bending tool data memory of those bending tools of the at least one first bending tool group which bending tools have been transported from the tool storage to the first bending machine, - performing a determination of the presence of multiple required bending tools from the tool storage according to the locations stored in the bending tool data memory of those bending tools currently located in the tool storage by means of the bending tool disposition determining device based on the at least one second product information, - after determining a complete presence of all required bending tools for forming a second cooperating bending tool group, the second bending tool group is assembled by picking the bending tools intended therefor from the tool storage according to the second bending tool disposition information determined by the bending tool disposition determining device. - providing a fist bending machine with a first upper press beam and a first lower press beam, - providing at least a second bending machine with a second upper press beam and a second lower press beam, - providing at least one tool storage with a plurality of bending tools, in particular bending punches and bending dies, accommodated therein for forming at least one cooperating bending tool group (14, 15) for at least one of the bending machines (2, 3), - providing at least one bending tool changing device, which bending tool changing device is configured to transport the bending tools of the cooperating bending tool group (14, 15) between the tool storage and in each case one of the bending machines (2, 3), - providing a bending tool data memory, in which bending tool data memory the respective current location for each individual one of the bending tools is stored, - providing a bending tool disposition determining device, which bending tool disposition determining device is configured to determine a first bending tool disposition information based on a first product information and at least one second bending tool disposition information based on a second product information, - assembling at least a first bending tool group comprising multiple bending tools by picking the bending tools intended therefor from the tool storage according to the first bending tool disposition information determined by the bending tool disposition determining device, - transporting the at least one first bending tool group from the tool storage to the first bending machine by means of the bending tool changing device, and arranging the at least one first bending tool group at the first press beam (6, 7) of the first bending machine, - updating the respective new locations in the bending tool data memory of those bending tools of the at least one first bending tool group which bending tools have been transported from the tool storage to the first bending machine, - performing a determination of the presence of multiple required bending tools from the tool storage according to the locations stored in the bending tool data memory of those bending tools currently located in the tool storage by means of the bending tool disposition determining device based on the at least one second product information, - after determining a complete presence of all required bending tools for forming a second cooperating bending tool group, the second bending tool group is assembled by picking the bending tools intended therefor from the tool storage according to the second bending tool disposition information determined by the bending tool disposition determining device.