HVAC Copper Pipe Expander Tool | CT-278 Model | Precision Flaring for AC Installation

The CT-278 pipe expander is engineered for precise, reliable flaring of air conditioner copper pipes. This professional-grade tool delivers clean, uniform flares with minimal effort, ensuring leak-pro...
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Questions about this product
- What pipe sizes does the CT-278 flare?
- It covers common copper sizes from 1/4 inch up to 5/8 inch outer diameter. The specs list mandrels for 1/4, 3/8, 1/2, and 5/8 inch tubes. Note the die count varies between listings, so confirm exactly which sizes ship.
- What is this tool used for?
- It makes clean 45-degree flares on air conditioner copper pipes for leak-proof joints. That's central to HVAC installs and refrigeration service. The dual handles give leverage so flares come out uniform with less effort.
- Does this work with standard AC fittings?
- Yes. It forms standard SAE 45-degree flares that match common HVAC and refrigeration fittings. It's meant for soft copper tube, Type L or Type K. It won't flare hard-drawn copper or steel lines.
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