soldering iron 
noun
An electrical tool used for melting solder and applying it to metals that are to be joined.Having started from scratch in 1983 they claim to have the most comprehensive range of butane powered soldering irons and heat tools available worldwide....
- ‘We use soldering irons, heat tools and many other things to create the pieces,’ said Mrs Crellin.
- In this process they learnt to use power drills, hack saws and soldering irons.
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