A drill chuck is a specialized tool used to hold drill bits securely in place while drilling. It is typically attached to the end of a drill, allowing for easy bit changes and providing a firm grip during operation. Drill chucks come in various sizes and types, including keyless and keyed versions, which determine how the bits are tightened or loosened. The primary function of a drill chuck is to ensure that the drill bit remains stable and centered as it rotates. This stability is crucial for achieving accurate holes in materials like wood, metal, or plastic. Proper maintenance of the drill chuck can enhance the performance and longevity of the entire drill tool.