The 5/16" x 4" Masonry Drill Bit is engineered for precision and durability in drilling through tough materials like brick, concrete, and stone. Made from high-quality carbide, this drill bit ensures long-lasting performance and efficient drilling. Its 5/16" diameter is ideal for creating holes for anchors and fasteners, while the 4" length provides versatility for various applications. This masonry drill bit is compatible with standard drill chucks, making it a reliable choice for both professional contractors and DIY enthusiasts.