A professional who tends machine that cuts v-or-l-shape pieces from corners of scored cardboard blanks to facilitate folding and forming boxes or from corners of paper sheets used for covering boxes. Responsibilities include:

• Turns wheel to adjust angle and position of guides on machine according to size of sheet or blank and cutting instructions.
• Positions single or multiple blanks or sheets against guides and depresses pedal to lower blade that cuts out corners.
• Turns stock to bring each corner into position for cutting and cuts specified number of corners.
• May be designated according to type of machine used as double-corner cutter; single-corner cutter.