Stubborn Setscrews Have you ever tried to unsuccessfully remove a small setscrew from a threaded hole? Generally, this means we are left with a rounded hole in the setscrew, a rounded end to your hex key tool, or both. I’ve found that I can soften the thread-lock by heating the setscrew with a small soldering iron tip (without heating the rest of the assembly). After a minute or two, the setscrew will come undone, without...
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