When used with a dust extractor, this DEWALT solid carbide hollow drill bit extracts dust while drilling. The result is less dust, fast holes, and fast adhesive anchor installation. This minimizes your exposure to dust while drilling, and adheres to OSHA Table 1 compliance. Bit can connect directly to the DeWalt Airlock System to form a secure, locking connection between the bit and dust extractor. The Y-cutter carbide design can allow exact positioning, perfect starting, and maximum durability.