The #21 Parabolic Jobber HS drill bit from Field Tool Supply is engineered for high-efficiency drilling in a range of materials. Made from high-speed steel, this bit features a parabolic flute design that enhances chip removal and minimizes friction, resulting in faster drilling speeds. With a diameter of #21, it is perfect for precision applications in both metalworking and woodworking. Its robust design ensures durability and reliability, making it a must-have for professionals in various industries. This drill bit meets stringent industry standards for quality.