Indiana University Libraries Book Repair Manual

Corner Rounder

As you would guess from its name, this tool is used to round off corners, most commonly those of the grey-white board pamphlet-type binders made in-house, phase boxes, and the flaps of the inner structures of both wrappers and portfolio-type enclosures. As with the board shear, the hold-down is foot-pedal-operated, so again you need to be careful to keep fingers out of its way.