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How can I repair the copper tip of the Hikari 60w soldering iron

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I have a 60w Hikari 110v soldering iron (welder) where the copper ferrule broke inside the welder, how can I remove this copper ferrule?
The copper tip broke inside the body of the Hikari 60W welding iron. The electrical resistance is ok .
The only thing I need to do is remove this copper tip.
 

My soldering irons have had a replaceable tip. A pointed copper rod with screw threads. Years of use can cause corrosion and fractures, and the threads tend to seize. It's easy to break if stressed. Did this happen to your iron?

There are screw extractors for removing fasteners whose heads broke off. Drill a small hole into the broken piece, embed the screw extractor in it, and twist out. It's not as easy as it sounds. It's a last resort.
 

I have broken about as many screw extractors, as bolts.

Have had better luck at drilling a series of holes (tiny pilot,
followed by thread-root diameter). It wants some good
hand-eye coordination (or a proper jig) but then you'd be
left with just the threads to pick out, easy enough (after
the first few, a tap might handle the rest with due care).

On cheapo pencil irons I used to just go buy brass bolts
of proper thread and file the tip to suit. Adequately close
to copper thermal conductivity, at least on a cheesy 40W
pencil.
 

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