Product Features High QualityMaterial: Made of bearing steel, blackened surface treatment, whichis rugged and durable. Great Perfomance: Preserve the ductility of copper during die forging to avoid cracks andleakage. A full range of forging tools makes it easier to expand HVAC pipes. Suitable for hard-to-reach corners and tight spaces. Tool Set: 6 piece set, with the most common HVAC pipe diameter:1,3,1,5,3,7.Sufficient quantity, completespecifications, perfect to complete your work needs. Easy to use: When installing the air conditioner, expand the copper pipe to connect the twocopper pipes with each other. (It needs to be installed on a hand drill).Easy touse, your good assistant for work and life. Application: Suitable for hard and soft copper standardized, easy to braze swaging set. Theforging stopper will provide a large swaging depth to achieve a perfect fit. Product Specification Type Tube Expander Material Bearing steel, blackened surface treatment Color Black Size 7(22.2mm), 3(19mm), 5(15.9mm), 1(12.7mm), 3(9.5mm), 1(6.3mm) Quantity 6 Suitable for for hard and soft copper standardized Application expand the copper pipe Package Included 6 x Tube Expander Location In order to improve buyer's purchasing experience and let the buyer receive items as soon as possible, we currently set four warehouses in diffirent cities of United States : one in Fremont, California; one in CITY OF INDUSTRY, California; one in Whippany, New Jersey; one in Monroe Township, New Jersey. When the order is generated, we would send the item to the buyer from the nearest warehouse with sufficient inventory to the order receiving address. Hope you could get your item soon,if you have any problem,please contact us by email. Thanks for your understanding and support in advance! Support & Share