Put the vice-like tool across the pipe and tighten it right up until it cuts in the pipe if you’re using a tube-cutting Software. You’ll should sand down any burrs with a rounded file once you’ve Minimize it. Even though you do commit to try to maintenance a galvanized pipe, https://www.malleableiron-pipefitting.com/industry-knowledge/how-to-connect-non-threaded-galvanized-pipes.html