Swaged tool for HVAC systems, forged from high carbon steel for wear resistance and durability. Key features - Material: high carbon steel, forging tool designed for durability and long life in demanding HVAC use. - 5 sizes included: 5 interchangeable inserts for common HVAC pipe diameters - 19 mm (63 mm total length) - 9 mm (61 mm) - 12.7 mm (56 mm) - 9.5 mm (53 mm) - 6.3 mm (50 mm) - Function: Used to expand a copper pipe and connect two copper pipes during air conditioner installation. Suitable for standard soft copper and can be easily soldered with forging. Requires installation on a hand drill. Benefits - Covers a wide range of common pipe diameters with precise, swaged inserts. - Durable construction minimizes tool breakage in the field. - Enables reliable expansion and joining of copper refrigerant tubing during installation or repair. Applications - Installing air conditioning systems where copper refrigerant lines must be expanded and connected. - Repairs or upgrades involving standard soft copper tubes that require swaging and soldered joints. - On-site pipe preparation in HVAC projects using hand drill powered operation.