If you want to twist the doubled wire, use the shown ways. Depending on the thickness of the wire, select the appropriate option: for a slim fit and a makeshift reamer with sewing coil or hand vise watchmaker, and for thicker hand drill.
Recommend to read
CONTACTLESS CAPACITIVE RELAY
The basis of a capacitive relay — a low-power generator of high frequency such as local oscillator of a radio receiver. To the circuit L1C4 (see diagram) of the connected metal plate...
HOT ON NAILS
This is an original and extremely simple device can perform a dual role: the stand, which is convenient to put hot pot, and a kind of roster that prevents it from cooling. In the latter...
