The Hilti 2027498 1-3/8 x 16 DD-B Concrete Masonry Drill Core Bit is a high-quality tool designed for drilling concrete and masonry. With a brand like Hilti known for producing durable and reliable products, this core drill bit is sure to perform well in various applications. Its 1-3/8 inch diameter and 16 inch depth make it suitable for many different drilling needs, and the DD-B design indicates it is specifically designed for concrete and masonry work.