Cut wires? No problem. Romex? It wouldn't be smoother if I heated them up and cut some butter into them. Did you cut a little (about 1/4 inch) of plastic? No problem. Do you cut the 3D printer filament to finish? Imagine - no problem. It's probably overkill for everything in the house. I like it. I'm an amateur, not a pro, so I can't comment on cutting 8 hours a day, day after day. But for me they are great!