On occasion, your pocket knife or a small knife, aside from several disadvantages previously mentioned, may be sufficient for stripping wires. However, their efficiency and usefulness pretty much depend on the size of the wire to be stripped. What this means is that if you have a wire that's thicker or much smaller than your regular wire size, a pocket knife will most likely disappoint you. Knowing this, wouldn't you rather have a tool that you're sure you can depend on for use in effectively and adequately stripping wires?
With this handy wire and cable stripper, that's precisely what you get. There are several holes or aperture sizes on the tool, so you just pick the right one, put the wire in, and you're good to go.