Every electrician knows you have to cut a screw every now and then to make it fit. But do they do it properly? Most will probably just use their linesman's or dikes, but using your wire strippers equipped with screw cutting is the proper way. Watch this video tutorial to see how to cut a machine screw without damaging the threads. An electrical screw or machine screw can be easily cut with a pair of electricians pliers. Cutting metric screws this way means that the thread will not be damaged so it will run smoothly into an electrical back box or wherever.