The tool shown in the provided figure is used to?

The correct answer pertains to the tool's primary function of creating a flare on the end of a piece of tubing. Flare fittings are a common method used in plumbing and HVAC applications to create a secure and leak-proof joint. The process involves shaping the end of the tubing outward in a conical form, which allows it to connect with a corresponding fitting securely.

Flare tools typically consist of a cone and a base to hold the tubing, and they work by expanding the end of the tube into a flared shape. This shape ensures a tight seal when mated with a flare fitting, which is critical for maintaining pressure and preventing leaks in various piping systems.

Understanding the specific usage of the tool helps in the proper execution of pipefitting tasks, ensuring safety and functionality in installations and repairs.