ColumPRO HVAC Repairing Tools, Air Conditioner Copper Pipe Expander Swaging Tool, 1/4 Inch Hex Shank Copper Pipe Flaring Tool Tube Expander,1/4''? 3/8''?1/2''? 5/8''?3/4''?7/8''Bits

??Superior material?:Made of high quality 40CR ball bearing steel?Durable, heat-resistant and wear-resistant, not easy to break,use it with confidence and safety.

??Heat by Friction?:Preserves copper’s malleability during the molding process, for a leak-tight fitting. Fit for1/4 Inch Hex Shank. Efficient work, making your daily work more convenient.

??Function?: A full range of forging tools makes it easy, air conditioning installation, open copper tube, so that two copper tube mutual link.(Please wear safety protection measures).

??package Accessories?: 6 different sizes of drill bits, including 1/4", 3/8", 1/2", 5/8", 3/4", 7/8",with One free 10-hole storage box, 1/4 Inch Hex Shank.Expansion tools are necessary accessories for repairing air conditioners.

??Quality Assurance?? This product has a warranty period of 30 days from the date of purchase. In the unlikely event that the product is initially defective, we will return or refund it. We will provide support 24 hours a day, 7 days a week. If you have any other questions, please feel free to contact Casta Support and we will respond promptly.