What is the purpose of a sanding block in auto body work?

The purpose of a sanding block in auto body work is to provide a flat, stable surface for sanding. This ensures that the sanding process produces even and consistent results across the surface being worked on. A sanding block helps maintain uniform pressure, preventing the formation of low or high spots that can occur when sanding by hand without support. By allowing for better control and reducing the risk of inadvertently creating uneven surfaces, a sanding block is essential in preparing automotive surfaces for paint or bodywork. This contributes to a smoother finish and enhances the quality of the overall repair.