1. suitable for stainless steel elbow pipe outside diameter 14 / 16mm, wall thickness from 1-2mm stainless steel pipe, steel, iron pipes, brass, etc., bending radius 56mm. 2. Innovative wheel design meets the requirement of high-strength heavy elbow extension handle 3. maximize savings force. 4. Special handle design makes it possible to fix the bench vice, from the other end to the elbow operation. 5. Can bent to 180 ° 6. Please rigid pipe bends before, tempered.