The #31 Parabolic Jobber HS from Field Tool Supply is designed for precision drilling in various materials. This high-speed steel (HSS) jobber drill bit features a parabolic flute design that enhances chip removal and reduces friction, ensuring efficient drilling performance. With a diameter of 0.31 inches, it is ideal for applications requiring accuracy and durability. The bit is engineered to meet industry standards, making it compatible with a wide range of drilling machines. Its robust construction ensures longevity, making it a reliable choice for both professional and DIY projects.