Sanders are power tools used for sanding and smoothing surfaces. They are commonly used in woodworking, metalworking, and other industries where the removal of material or the refinement of surfaces is necessary. Sanders utilize various abrasive materials or sandpaper to achieve the desired finish.

Here are some types of sanders commonly available:

1. Belt Sanders: Belt sanders feature a continuous loop of sandpaper, or an abrasive belt, that moves in a linear motion over two or more rollers. Belt sanders are ideal for removing large amounts of material quickly and efficiently. They are commonly used for shaping and leveling wood, as well as for rough sanding tasks.

2. Orbital Sanders: Orbital sanders, also known as random orbital sanders, use a circular sanding pad that moves in an orbital or random pattern. This movement minimizes visible sanding marks, producing a smoother finish. Orbital sanders are suitable for both rough and fine sanding tasks and are popular for woodworking projects.

3. Palm Sanders: Palm sanders, or finish sanders, are smaller and handheld sanders that are easy to maneuver. They typically have a square or rectangular sanding pad that moves in a back-and-forth or orbital motion. Palm sanders are used for finishing touches, final smoothing, and sanding smaller areas or tight spaces.

4. Detail Sanders: Detail sanders, also called corner sanders or mouse sanders, are designed for sanding hard-to-reach corners, edges, and intricate details. They have a small triangular-shaped sanding pad that allows for precise sanding in tight areas.

5. Disc Sanders: Disc sanders use a spinning sanding disc to remove material or smooth surfaces. They can be handheld or mounted on a workbench or power tool stand. Disc sanders are commonly used for rough sanding, shaping, and contouring wood, as well as for metalworking applications.

Sanders are often available in kits or sets that include different types of sanders along with accessories such as sanding pads or discs, dust collection systems, and carrying cases. These kits provide a convenient solution for various sanding needs and allow users to switch between different sanding tasks easily.

When using sanders, it's important to follow safety guidelines, wear appropriate safety gear such as safety goggles and a dust mask, and work in a well-ventilated area. Regularly inspecting and maintaining the sanding tools and replacing worn-out sandpaper or sanding pads will ensure optimal performance and results.