A vise is a mechanical device used to hold an object firmly in place while work is being done on it. It typically consists of two jaws, one fixed and one movable, which can be tightened or loosened using a screw mechanism. Vises are commonly used in woodworking, metalworking, and other crafts to secure materials for cutting, drilling, or shaping. There are various types of vises, including bench vises, pipe vises, and masonry vises, each designed for specific tasks. They are often made from durable materials like cast iron or steel to withstand heavy use and provide stability during operations.