We have a couple of SD box door pullers on which the swivel feet are freezing in place. They can then be hammered or twisted loose again but do not work smoothly. They are not designed to be lubricated except by thin lube from the 1/2-13 screw on connector.
I am thinking of drilling a small hole from the top down to let some oil in.
Is anyone else having this problem and what have you done for it.
Thanks