I recently came into posession of a third-hand type tool
with two stations for holders. . These have round opening for
the tweezer ends. The opening is about 1/4 inch in diameter.
I have such a third hand. It doesn’t use tweezers it used the
alligator clips used in low voltage electrical work. Buy them
at shops like Radio Shack Cheers,
/ /__| \ @John_Burgess2
At sunny Nelson NZ