Which tool is NOT typically used in a perming procedure?

In a perming procedure, the primary goal is to curl or wave the hair using chemical solutions and physical tools that are specifically designed for this purpose. Perm rods, clips, and end papers are all essential tools used during the process.

Perm rods are used to create the desired size and shape of the curl, allowing the stylist to control the tightness of the wave. Clips help in securing sections of hair during the wrapping of the perm, ensuring that the hair stays in place while the chemicals do their work. End papers are employed to protect the ends of the hair, preventing them from becoming frizzy and ensuring even absorption of the perm solution.

In contrast, a thermal round brush is not utilized in a perming procedure. Its primary purpose is for styling and smoothing hair with heat, rather than for altering the hair’s structure chemically. Therefore, it does not fit into the category of tools used specifically for perming hair, making it the correct answer to the question.