I need to come to the defense of Milwaukee Tools in their offer. As you can see in the verbal lead-in, the reviewer did not know what an "Expander" was. That's the crux of the mistake.

An expander works to seal fittings in a water piping system. If you're serious or in the business, you easily buy $300 of the fittings for several jobs. Milwaukee then throws in the expander - an essential tool. This is a great bargain. Great savings.

A correction and apology is needed.