The Van Mark TrimFormer Dies is used with Van Mark TrimFormer to give your trim work a distinct look. Interchangeable dies can be replaced in seconds. Dies have multiple uses on various trim pieces adding more profit to every job. The TrimFormer Dies add beauty to any fascia or trim pieces, works as a rib stiffener for fascia panels, or rake trim. They also help prevent wind-driven rain from getting under roofing.