Wire clasps for jewelry. Wire wrap tutorial.
Sorry for the poor translation of the text.
Copper wire for locks for jewelry 1 mm and 1.2 mm thick. Thin wire for braiding 0.3 and 0.4 mm.
For the manufacture of "balls" at the end of the wire will need a gas burner (the simplest).
For sanding, use different "skins", special nozzles. For polishing - special paste.
Wire Jewelry handmade, Wire Wrap Tutorials on Etsy - https://www.etsy.com/shop/vorobev