... specialzie in manufacturing auto air conditioner tool, adaptor, equipments . Tube expander setModel NO.:CT-100 GROSS WEIGHT: 17KG / CARONPACKING : 4PCS/CARTON ... mm O.D. ( 32, 35, 38, 40, 42mm)It can expander copper tube easily.high quality tools this model is very ... send sample to you to check our product quality ! Tube expander set