Esco Tool (www.escotool.com) says its new airpowered tool can remove as much as four inches of fin from the outside diameter of a tube and prepare the ends of the tube for welding. The Millhog fin tube removal tool acts in one step, and can complete its job in less than two minutes. The Millhog fin tube removal tool clamps to the inside diameter of the tube, is chatter-free and can work in any position.