Punching and notching are relatively simple, but very flexible, processes in which iron workers or punches are used to punch a hole of some form in a metal blank. Punching essentially means to push out a hole with a complete perimeter. Notching means punching a hole with an open edge such as on the outside edge of a metal blank.

Positioning is manually controlled, so these forms of processing are used on less tolerance-sensitive parts. The flexibility of iron workers allows O'Neal to cost-effectively process a wide variety of parts and creatively solve customer requests.
O'Neal utilizes a number of punches with capacities of up to 3/4" in thickness. Hole diameters can be as large as 5" in lighter gauge materials.