An apparatus for cutting metallic tubing into predetermined lengths has a stationary supporting frame on which is mounted a feeding mechanism for moving a straight length of tubing unidirectionally intermittently along a straight path in alignment with the longitudinal axis of the tubing. A cutoff device driven by a motor having a hollow shaft for receiving the tubing is also mounted on the frame. The feeding mechanism is in two sections each being individually reciprocable but controlled to operate oppositely and alternately to feed tubing in predetermined lengths to the cutoff device. The cutoff device is operated to cut off the tubing while it is stationary between feeding movements of the feeding mechanism.