Flaring 1. Designed for R410 design, easy to operate, saving time and effort. 2. Special eccentric rotation of the tube interior gradually widened to form a precise 45-degree regular bell without falling, the extended horn surface will be more smooth, smooth and no scratches. 3. Flaring work is completed, the eccentric cone head may pop up, then let the cone head and then maneuver 1-2 times, the resulting friction causes the bell more smooth and beautiful. 4. Zero gap closure technology, no force closes the gap to zero brass, brass wall to ensure no scratches after reaming, and the diameter of the same. 5. Quality far more than American and European standards, durable.