Does anyone know any 10 AWG cable if possible duplex(2 conductor) which fits in a single 8mm penetrator.
it depends on the insulation of the wire it self. if the wire has a thick insulation then it might not go in but if it is thin then it should go in. i recommend that you buy 1 8mm penetrator and try out the cables you have. i have a couple of them and i am pretty sure that it will go in. also if you have a digital dial caliper that you could precisely measure the thickness of the wire and see if it fits. good luck 