A detail sander is a small, handheld power tool designed for sanding tight spaces and intricate surfaces. It features a triangular sanding pad that allows users to reach corners and edges effectively. This tool is commonly used in woodworking, furniture refinishing, and home improvement projects. Detail sanders typically use sandpaper sheets that can be easily replaced, and they often come with a dust collection system to minimize mess. They are ideal for smoothing surfaces before painting or staining, making them a valuable addition to any DIY enthusiast's toolkit.