TDF flange is well seal and low cost, suitable for small size duct connection. Different models with different flange height of 20mm, 34mm or 40mm. One side forms TDF flange and the other forms Clip, 16 forming stations produce an integral flange while another 9 forming stations produce clip. With compact design, this machine can be taken to construction site easily. It is especially suitable for East Asia, Australia and American market. Used with Comifo Clip Cutter and Clip Spanner, no cutting is needed for roll formed clip, which eliminates twists of clips. Clip spanner expedites clip installation, which would be an economic tool for duct construction.