They are called wire or cable strippers. Always sell for a good penny.

http://goo.gl/csVE9


i

On 2012-01-09, Steve B wrote:
A second person has approached me to go together with them on making a
copper shredder. This would amount to building a machine to cut the pieces
of wire into short pieces, and strip all insulation.

Has anyone had any experience with doing this? Links to helpful diagrams or
information?

Steve