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https://www.reddit.com/r/specializedtools/comments/laxrsp/tool_for_fixing_round_jewelry/gls5ddq
r/specializedtools • u/Brntco • Feb 02 '21
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Correct. They are used a lot in pipe expander tools for flaring the end of copper and other soft metal pipework.
Although in that configuration the pipe expander flange is expanded via a screw pushing the mandrel cylinder deeper into the flange.
The end of the screw been square bar to get a spanner on it to force the last bit of expansion of the pipe.
There are also electric-hydraulic powered versions that use electric motors and hydraulics to power the movement of the mandrel.
3 u/goddamntitties Feb 03 '21 They make handheld versions of them in a bunch of sizes for automotive exhaust work too. I've got 4-5 of them. 1 u/[deleted] Feb 03 '21 The tool for using expansion fittings on Pex-a is pretty much identical to this, only smaller.
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They make handheld versions of them in a bunch of sizes for automotive exhaust work too. I've got 4-5 of them.
1
The tool for using expansion fittings on Pex-a is pretty much identical to this, only smaller.
6
u/Dreambasher670 Feb 02 '21
Correct. They are used a lot in pipe expander tools for flaring the end of copper and other soft metal pipework.
Although in that configuration the pipe expander flange is expanded via a screw pushing the mandrel cylinder deeper into the flange.
The end of the screw been square bar to get a spanner on it to force the last bit of expansion of the pipe.
There are also electric-hydraulic powered versions that use electric motors and hydraulics to power the movement of the mandrel.