Tool used to remove the rubber sheathing from stranded wire. Works by having a specific size for each gauge of wire, and cutting into the sheathing but not the wire itself. Often bundled in the same product as wire crimper or wire cutters.
http://www.lowes.com/pd_34132-12704-45-778_?PL=1&productId=1083479
http://www.lowes.com/pd_34132-12704-45-778_?PL=1&productId=1083479
