If it's coax, spending a few bucks on a tool like this can save a lot oh headaches considering you have to get both the distance to strip the exposed core and the metal inner sheathing just right. And also, you can't just cut off the metal sheathing as it is used as the return wire.

A tool like this gets it right just about every time. Insert the end, press down and twist. Done.


With great power comes Awesome irresponsibility.