The GP 1.2139 1 1/4-18 BASIC GO is a precision drill bit designed for core drilling applications. With a diameter of 1 1/4 inches and a thread size of 18, this bit is perfect for creating precise holes in various materials. Its construction adheres to industry standards, ensuring reliability and performance. The BASIC GO designation indicates its suitability for basic drilling tasks, making it a versatile choice for professionals in the field. This drill bit is compatible with standard drilling equipment, enhancing its usability across different projects.