Expander-press tool Designed for maintenance of cooling equipment such as refrigerators, air conditioners and freezers, and used with copper tube expanders to perform expansions efficiently. Copper tube expander Resists deformation and breakage for a long service life; offers a wide range of copper flare tools to support reliable tube work. Tube expander Flare tools for copper tubes with high hardness and durability; commonly used to expand piping components for HVAC installations. Flare tool Used during air conditioner installation to flare copper tubes and create proper joints between copper tubes; compatible with standard air conditioning tube expanders. Use scenarios - HVAC maintenance and repair of home refrigerators, freezers, and air conditioning units, including expanding and preparing copper lines for fittings. - On-site installation of air conditioning systems where copper refrigerant lines must be expanded and flared for secure connections. - Refrigeration and cooling system projects in commercial settings that require durable, repeatable tube expansion and flare tasks.