How do you use a pipe expander?

To use a pipe expander, you twist it clockwise with a ratchet to expand the pipe. Leverage may be required.

Here's a breakdown based on the reference provided:

1. Insertion: The pipe expander is inserted into the pipe that needs to be expanded.
2. Expansion: To expand the pipe, twist the expander clockwise.
3. Tool Use: A ratchet is commonly used to turn the expander.
4. Leverage: Expanding a pipe often requires a good bit of leverage.