So far they have worked great. I have used them when servicing one of my ham radios, desoldering components and repairing solder joints. The suction power is sufficient for my needs and thanks to the wide opening they are easy to clean if necessary. In most cases the sucked out solder comes out so I don't have to put anything in there. I really like that they're mostly aluminum - there's very little plastic here, which will hopefully add strength and durability.
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