Abstract: The input shaft of a punch press is rotated at a continuous preselected speed and is drivingly connected by a cam drive mechanism to an output shaft to generate oscillating rotational movement of the output shaft. Upper and lower feed rolls are rotatably supported in a frame in overlying relation to engage stock material extending between the upper and lower rolls. A combination linkage and gear cluster transmits the oscillating rotation movement of the output shaft to one of the feed rolls. The second feed roll is pivotally supported in the frame for movement toward and away from the first feed roll. A coupling drivingly connects the gear cluster to the second feed roll to oscillate the second feed roll through an angle of rotation corresponding to the angle of rotation of the first feed roll and thereby drive both of the feed rolls to intermittently feed a preselected length of the stock material to the press.