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What is the 2T/4T feature on a welder?

The 2T/4T feature is where the welder can choose to weld in:

2T Mode

Press the gun/torch trigger to weld and release to stop.


4T Mode

Press and release the gun/torch trigger to start, weld without holding the trigger on and stop by pressing and releasing the trigger again. This is particularly useful when doing long weld runs.


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