Drill America DWDDL Series High-Speed Steel drill bit is for general purpose drilling in applications where extra length for reach is required. It is designed to perform in a broad range of materials in the iron and steel families. Ranging from 8 in. to 24 in. L, Drill America DWDDL Extra Long Drill Bits are for applications where extra length is required for reach. Standard 118 conventional point tip for designed to perform in a broad range of materials in the iron and steel families. Round shanks allow use with a wide variety of tool holding systems.