How To Cut Cast Iron Pipe In Tight Space. A chalk mark is drawn around the pipe. Align the pipe on the device, turn the knob to apply a light pressure on the tube then turn the cutter around the pipe.
Although the cut will be clean with a grinder, it’s likely that the surrounding area won’t be. And cast iron destroys blades fast;
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And so it builds friction and heat and melts the pipe while maintaining its strength. Both tools will cut cast iron with relative ease, if not as quickly as a snap cutter, and they work in tight spaces.