The DEWALT DW5818 1'' X 8'' X 13"1/2''L SDS MAX is a high-quality drill bit designed for heavy-duty industrial use. With a 1-inch diameter and a length of 13.5 inches, this SDS Max bit is perfect for drilling into various materials with ease. The DEWALT brand ensures reliability and durability, making it a valuable tool for professionals in the construction and demolition industries.