Copper Tube Pipe Expander Set 5/6/11 Pc – Hex Shank AC Tool

Expand Copper Pipes Quickly & Effortlessly

Whether you're installing or repairing an air conditioning system, the Zimir Copper Tube Pipe Expander Set gives you everything you need to expand and connect copper pipes with precision. Available in 5, 6, or 11-piece configurations, this kit covers all standard pipe sizes and fits any hand electric drill — making pipe swaging and flaring faster and less labor-intensive than ever before.

Made in Mainland China.

Why You'll Love This Pipe Expander Set

• High-Quality #45 Steel Construction – Heat-treated and high-temperature quenched for exceptional hardness, durability, and a longer service life.
• Complete Size Range – Includes heads in 1/4" (6.3mm), 3/8" (9.5mm), 1/2" (12.7mm), 5/8" (15.9mm), 3/4" (19mm), and 7/8" (22.2mm) — covering the most common copper pipe diameters used in HVAC and refrigeration work.
• Drill-Ready Hex Shank – Features a universal 1/4" hex shank (or triangle shank) that locks securely into any hand drill or power drill. No special tools required.
• Effortless Pipe Swaging – Expands copper tubing smoothly so two pipes can be joined end-to-end without solder fittings, saving time and reducing leak points.
• Labor-Saving Design – The optimized taper geometry reduces the force needed to expand the pipe, reducing fatigue on long jobs.
• Versatile Use – Ideal for AC installation, refrigeration lines, plumbing repairs, and general metalworking/pipe-fitting applications.

Specifications

How to Use

1. Select the expander head that matches your copper pipe's outer diameter.
2. Insert the hex shank into your hand electric drill and tighten securely.
3. Insert the expander tip into the end of the copper tube.
4. Run the drill at a moderate speed while applying steady forward pressure.
5. Remove the expander — your pipe end is now ready to sleeve over a matching tube for a tight, leak-resistant connection.

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Learn More About Safe Tool Use

For best practices when working with hand and power tools in HVAC and metalworking applications, refer to the OSHA Hand & Power Tools Safety Guidelines.

Frequently Asked Questions

Q: What types of copper pipe can this tube pipe expander set work with?

A: This copper tube pipe expander set is designed for standard soft copper tubing commonly used in air conditioning, refrigeration, and plumbing systems. It works with pipe outer diameters of 1/4", 3/8", 1/2", 5/8", 3/4", and 7/8" — covering the vast majority of residential and light commercial HVAC copper pipe sizes.

Q: Do I need a special drill to use these hex shank pipe expander heads?

A: No special drill is required. The 1/4" hex shank (or triangle shank) is compatible with virtually any standard hand electric drill or cordless drill with a 3-jaw or hex-bit chuck. Simply insert, tighten, and you're ready to start expanding pipes.

Q: What is the difference between the 5-piece, 6-piece, and 11-piece sets?

A: The different set options allow you to choose based on the pipe sizes you work with most. The larger 11-piece set gives you the most comprehensive coverage, including multiple sizes and potentially duplicate heads for convenience, while the 5-piece and 6-piece sets are ideal for more focused applications or professionals who only need specific diameters.

Q: Is this pipe expander tool suitable for flaring copper tubes as well?

A: This tool is primarily designed for swaging (expanding) copper tube ends so they can sleeve over another pipe for a push-fit connection. For full 45° or 90° flares (as used in refrigerant line fittings), a dedicated flaring tool is recommended. However, this expander is an excellent complement to a flaring kit for complete copper pipe work.