The 1/2" diameter hammer drill bits with SDS-Plus shank from Metallics West Inc are engineered for heavy-duty drilling in concrete and masonry. Each bit measures 29 inches in length, providing extended reach for deep drilling applications. The SDS-Plus design ensures quick and secure bit changes, enhancing productivity on the job site. Made from high-quality carbide, these bits offer exceptional durability and performance, making them suitable for professional contractors and serious DIY enthusiasts. Ideal for use with rotary hammers, they are perfect for a variety of construction projects.