To extend the life of a cutting tool by changing the cutting conditions of the cutting tool for the machining of the end section of a work and the portion other than the end section of the work.

The last end face of a work W installed on a support roller 21 in contact with a reference roller 2 is pushed by the contact piece 33 of a length measuring wheel 29 to measure the length of the work W to be fed, and the work W is fed to the position of a band saw blade BS. The work W is fixed by a main body bias mechanism and a front bias mechanism near the band saw blade BS, and the work W is cut by the traveling band saw blade BS. The work W is fed to a horizontal band sawing machine, the prescribed size is measured from the end section of the work W by the length measuring wheel 29, the signal is fed to a file, the saw edge feed and saw edge speed are specified as the cutting conditions of the portion other than the end section of the work W, then a saw edge feed controller and a saw edge speed controller are controlled to cut the portion other than the end section.