DEWALT DW5524B25 5/16 x 4 x 6-1/2 SDS+ 4C ELITE (25pk)

Engineered for exceptional durability and performance, the DEWALT 5/16″ x 4″ x 6-1/2″ High Impact Carbide SDS+ drill bits are designed to tackle tough materials, specifically C35 concrete. Featuring a proprietary circulating cutting carbide design, these bits provide increased carbide surface area compared to previous 4 cutter models, delivering a longer lifespan—up to 2X longer than competing options. Each bit includes an anchor wear mark indicator located on the carbide tip, ensuring that users can accurately gauge the size of their holes for proper anchor installation. Backed by a no break guarantee, DEWALT commits to replacing any bit that fails while the wear mark is still visible, making this pack of 25 bits a reliable choice for professionals seeking quality and precision in their drilling tasks.