Which device is specifically used to hold stock securely while drilling?

The drill press vise is specifically designed to hold stock securely while drilling, making it an essential tool in woodworking and metalworking applications. This device ensures that the workpiece remains stable and in place, preventing any movement during the drilling process, which is vital for achieving accurate holes and preventing damage to both the tool and the material being worked on. The vise can be adjusted to accommodate different sizes and shapes of stock, providing versatility and ease of use.

Tools like expansion shields and dust masks serve different purposes. An expansion shield is typically used for anchoring purposes rather than securing materials during drilling. A dust mask is designed to protect the user from inhaling dust and debris, not to hold materials in place. An extension, while it may relate to extending tool reach or capabilities, does not involve clamping or securing workpieces. Thus, the drill press vise stands out as the most appropriate tool for the task of securing stock during drilling.