Midwest Sheet Metal Duct 5 Blade Crimping Tool
Heavy duty crimper blades are 13 gauge cold-rolled steel heat-treated to a hardness of 45-50Rc. 5 Blades produce double crimp to downsize duct to create male end. Crimps round and square duct to allow for easier installation of flex and rigid duct. Compound leverage action. Heavy duty plastic grips for user comfort.