6PCS HVAC maintenance kit, air conditioning copper pipe expansion machine, rotary cutting tool, manual pipe rotary cutting tool

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Function: When the air conditioner is installed, expand the copper pipe to link the two copper pipes to each other. Perfect for HVAC Repairs: Our drill bit set is specifically designed for copper pipe swaging, making it the ideal tool for air conditioner repairs and other HVAC projects. Hex-Shank Design: The hex shank on each bit ensures a secure fit in your impact or power drill, preventing slipping and ensuring precision. Six Sizes Included: With six different sizes included (7/8, 3/4, 5/8, 1/2, 3/8, and 1/4), you'll have the right size bit for any job. Durable and Long-Lasting: Made from high-quality materials, our drill bits are built to last and can withstand heavy use without breaking or dulling. Easy to Use: Whether you're a professional HVAC technician or a DIY enthusiast, our drill bit set is easy to use and will help you get the job done quickly and efficiently. 【Pipe Expander】The innovative drill bit expander for expanding tubes using heat by friction way more surface of between the flare and the Valve. Suitable for hard and soft copper standardized, easy to braze swaging set.