Two HVAC/R technicians are discussing the use of hand tools. Technician A says that a deburring tool is used to expand the end of a piece of pipe so that it can be secured with a flare nut and fitting. Technician B says that a nut driver would be used to remove the hex head machine screws in an equipment panel. Which one of the following statements is correct?

To determine which technician is correct, we need to understand the functions of the mentioned tools.

1. Deburring tool: A deburring tool is used to smooth and remove any burrs or rough edges left on the inside or outside of a pipe after it has been cut. It helps ensure proper fitting and connection by providing a clean surface.

2. Flare nut and fitting: Flare fittings are used to connect pipes or tubes with flare ends. They consist of a nut and a fitting with a cone-shaped seat. The flare nut is used to secure the pipe or tube onto the fitting, creating a seal.

3. Nut driver: A nut driver is a hand tool used for tightening or loosening nuts and bolts. It has a socket-like shape that matches the size of the nut or bolt head. It provides more control and torque than a regular screwdriver.

Now, let's evaluate the statements made by the technicians:

Technician A states that a deburring tool is used to expand the end of a piece of pipe so that it can be secured with a flare nut and fitting. This statement is incorrect. A deburring tool is not used to expand the end of a pipe; its purpose is to remove burrs and rough edges.

Technician B states that a nut driver would be used to remove the hex head machine screws in an equipment panel. This statement is correct. A nut driver is commonly used for handling hexagonal nuts, bolts, and screws, making it suitable for removing hex head machine screws.

Therefore, the correct statement is made by Technician B.