... HST-650Twistingapply to over 7 threads silver plated wire, tin plated wire, enamelled wire, naked copper wire,CCS, CCA etc super fine conductor and ... . apply to over 7 threads silver plated wire, tin plated wire, enamelled wire, naked copper wire,CCS, CCA etc super fine conductor and ... or right to left or right the free choice is rotating or ouerturning flat cable polish rod traverse unit, pitch, ...