Copper tube expander - GIF

Copper tube expander.

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Previously:

https://www.homemadetools.net/forum/...294#post196210
https://www.homemadetools.net/forum/...008#post184006
https://www.homemadetools.net/forum/...418#post150880
https://www.homemadetools.net/forum/...048#post184153
https://www.homemadetools.net/forum/...883#post183588

That is a gadget I could use!

The imported ones are not expensive, about $160 AUD, say about $100 US. The copper pipe needs to be annealed to prevent splitting.

Quote:

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Originally Posted by Bony

The imported ones are not expensive, about $160 AUD, say about $100 US. The copper pipe needs to be annealed to prevent splitting.

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Yep, heat it up glowing and dip it into water. And you have soft copper. Copper tubing is work hardened when it is drawn over a mandrel.

Quote:

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Originally Posted by WmRMeyers

That is a gadget I could use!

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That particular model is about $500...

There is a hand tool version:

https://navacglobal.com/product/tube-expander-nte7/

one place online has them for sale for under $50, but the reviews are not so favorable...

This is the type I purchased, simple to use and works extremely well. And is inexpensive.

https://hvacdirect.com.au/hvd-tube-e...BoCLS0QAvD_BwE

See one play one!

https://www.aliexpress.com/item/1005003908144024.html?spm=a2g0o.productlist.0.0.6f775930O07F31&algo_pvid=dc 4dc0fd-365e-4da3-848c-6926c741cf06&algo_exp_id=dc4dc0fd-365e-4da3-848c-6926c741cf06-34&pdp_ext_f=%7B"sku_id"%3A"12000027439088755"%7D&pdp_pi=-1%3B5.59%3B-1%3B-1%40salePrice%3BCAD%3Bsearch-mainSearch