Type K is even stronger and is intended mainly for commercial use. It is marked with orange lettering. Soft copper tubing is sold in a coil and bends easily. It's well suited for use in tight spaces and in situations involving awkward bends, and it requires fewer joints. A tubing cutter is the best tool for cutting copper pipe.
Several turns are usually sufficient to cut through the pipe.
Always wear protective glasses and follow proper safety precautions when working with a soldering torch. The copper surface must be clean in order to form a good joint. Clean the end of the pipe on the outside with emery cloth or a specially made wire brush. With the pipes and fitting in place, ignite the torch with the striker. After heating for a few moments, test whether the copper surface is hot enough by touching it with the end of the solder.