On Fri, 22 Jan 2021 21:55:15 +0000, alan_m wrote:

One other trick that can work if the screw is tight is to put the
screwdriver on the screw head and then give the other end of the screw
driver a whack with a hammer. Often then it starts to undo.

Old fashioned manual impact screwdriver. I still have mine, it's over 50
years old.



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