The 5/16" Parabolic Jobber High-Speed Steel drill bit from Field Tool Supply is designed for precision drilling in various materials. This bit features a parabolic flute design that enhances chip removal and reduces friction, ensuring efficient drilling performance. Made from high-speed steel, it offers durability and longevity, making it suitable for both professional and DIY applications. The bit measures 5/16" in diameter and is ideal for use in metalworking, woodworking, and other industrial applications. Its standard shank allows for compatibility with most drill chucks, ensuring versatility in use.