stripping 4-0 copper wire

Originally Posted by Copperli

Lay they wire outside in direct sun. Blacktop is best. The heat should help strip it. If still a problem just sell as is

This is actually a brilliant idea, stealing this recommendation haha!

rpy31971 sounds like you need a better device to get the insulation off, I've never had trouble with larger wire, usually it's the opposite smaller wire is a pain and larger wire is just easy and extremely profitable.