He does not even have a leadership political action committee yet, which is an invaluable tool to raise money and build support.

In the right hands, humor can be an invaluable capitalist tool.

A mirror can often be an invaluable tool to help us to become more aware.

Even today, they are invaluable tools to understanding filter behavior.

A few had gotten out and become invaluable tools for criminals.

In a formal response, they called the report an "invaluable tool."

That was because he had found the cane to be an invaluable tool over the years.

Radar is still used as an invaluable tool in air to ground communications.

It can be an invaluable tool in the investigation of market abuse.

Certain languages are invaluable tools for it to do so.