... , straightening, beading, punching square, notching, folding and shearing, punches for cross-tie holes and duple 1. Cut to ... Cutting blank for TDF flange machine. It can be used with TDF flange machine and folding machine.2 ... .3 Cutting blank for angle iron flange or “Z” ... get a full wrap duct.3. Cutting blank for TTF/LT mate flange. Used with a vertical ...