The RÖHM Quick-action drill chuck Supra S is a handy tool for professionals and DIYers alike. This lightweight drill chuck clamps securely in place, allowing for easy and efficient drilling on various materials. Its internal thread and self-clamping mechanism make it a breeze to use, and its compact design won't weigh you down. The key benefit is its ability to quickly secure drill bits, saving you time and effort on the job. Whether you're working on a commercial project or a personal project, this drill chuck is a must-have for any drilling task.