My chuck makes it possible to securely fasten the workpiece at one end (cantilever), which allows you to expand the possibilities of turning various products, for example, glasses, shot glasses, salt shakers, and the like. The part of the workpiece remaining in the chuck after cutting the finished product is unscrewed from the chuck. If it fits very tightly, then you can drill 2 holes in it from the end, insert 2 drills into them with the back side and unscrew it using a wrench. You can use a medium-sized screwdriver as a wrench. The unscrewed part of the workpiece with a thread cut into it can be used as a flange for screwing it to it with screws or gluing a new workpiece, for example, for turning plates. After attaching the new workpiece, it is screwed into the chuck using the existing thread.