Yes, a simple metal file can cut copper pipe. It’s the slowest method on Earth, but it’s also the quietest—perfect for late-night plumbing when your landlord is asleep. Use a flat file and work a groove into the pipe all the way around, like you’re filing a key for a very loud safe.
After about fifteen minutes of furious filing, the pipe will literally snap in your hands. That moment is pure, unadulterated victory—and a little sad, because you just spent a quarter-hour on a ten-second job. Still, it’s a great party trick. “Watch me cut this pipe with patience,” you’ll say, sounding wise and slightly deranged.
How To Cut Copper Tube | The Tube