What unique feature does a self-feed bit possess?

A self-feed bit is specifically designed for drilling holes in wood and has a distinct characteristic that sets it apart from other types of drill bits: it includes a lead screw. This lead screw acts like a corkscrew, allowing the bit to pull itself into the material as it rotates. This feature is particularly advantageous when drilling deep holes, as it helps to maintain control and reduces the effort required by the user to push the bit into the wood.

The ability of the lead screw to pull the bit into the wood helps create efficient drilling and minimizes the likelihood of the bit binding or stalling during operation. This makes self-feed bits ideal for tasks that require high precision and control, such as boring large-diameter holes in wooden beams or lumber.

While other features associated with drill bits may include aspects like the ability to drill through metal, having a flat bottom for blind holes, or maintaining a fixed diameter, these do not pertain specifically to the self-feed bit’s unique design and function. The lead screw is the defining element that enhances its efficiency and usability in woodworking applications.