The Malco C5A is a Power Assisted Crimper. This power assisted crimper is designed for fast, easy, precise crimps in large or small round duct and pipe. It has a capacity for 24 to 30 gauge galvanized steel duct, sprial duct, black stove pipe, and aluminum pipe. It's telescoping clamp adjusts to fit the length and width of any drill housing, and it's installed crimper attachment is easily operated with one hand. It's gear reduction ensures safety and control, and it's narrow slot prevents fingers from entering the gear area.