This is a test of commonsense. Complete the next sentence:

How to bend pipe
Choose the right bending tools for your needs.
There are 6 main bending methods. Each is best suited to a particular type of pipe.
Ram style bending, also called incremental bending, is usually used for putting large bends in light-gauge metal, such as electrical conduit. In this method, the pipe is held down at 2 external points and the ram pushes on the pipe at its central axis to bend it.