Sutton Tools Silver Bullet jobber drills are a general purpose drill bit with a longer flute & overall length. Ideal for drilling deeper holes in a wide range of ferrous materials. Features 118° Standard Point Precision ground flute designed for fast chip removal. Made from M2 High Speed Steel (HSS) offering the best combination of strength, heat & wear resistance Blue surface finish for ferrous applications. The steam oxide finish prevents chip build-up on the cutting edges and reduces cutting friction, especially in low carbon steels. Specifications Size: 5/8" (15.88mm) Overall Length: 222mm Flute Length: 125mm