🔧 Elevate Your HVAC Game with Precision Tools! Designed for both beginners and seasoned pros, making installation a breeze. Crafted from high-quality bearing steel for exceptional hardness and wear resistance. Includes 6 different sizes (1/4'' to 7/8'') for all your HVAC needs. Revolutionary heat friction technology ensures a perfect fit every time. Weighing only 10g, this tool set is easy to carry and store. Heat friction tech 6 sizes Bearing steel The 6pcs HVAC Repairing Set is a professional-grade tool kit designed for expanding and swaging copper tubes in air conditioning systems. Made from durable bearing steel, it features six different sizes to accommodate various tubing needs, ensuring a perfect fit with innovative heat friction technology. Ideal for both novice and experienced installers, this lightweight set is a must-have for efficient HVAC repairs.