Small Hole In Copper Pipe ! | Screwfix Community Forum
Use the end that cuts on the pull stroke. You just need enough room for about an inch of travel to cut the pipe, so a bit of a groove in the plaster either side. not easy, but possible. Cut either side of the hole, as the pipe is probably out of round there, and fit a new section with slip couplings. TicklyT, Sep 7, 2006.