Hold-downs (Shearing) * Conventional Ironworker: Fixed hold-down needs to be clamped/unclamped with each stroke (slow); Material can shift while shearing (less accurate). * Inadequate clamping promotes short blade lif e (more expensive). Piranha Ironworker: Urethane hold-downs clamp and unclamp the material automatically with each stroke (fast); Parts remain clamped during entire shearing
