The Mayhew Roll Pin Punches are used to drive out roll pins or spring pins. These punches are the only way to remove and re-use roll or spring pins without causing damage to the pins. Because of the hollow, thin wall construction of a roll pin, a standard pin punch will often collapse, mar or distort the end of the pin or be driven into and jammed inside the hollow core of the roll pin. Roll pin punches are designed with a small projection in the center of the pin tip to support the circumference of the roll pin.