Precision Twist 5ATS High Speed Steel Taper Shank Drill Bit, Black Oxide Finish, Morse Taper Shank, Spiral Flute, 118 Degree Point Angle, 18.50mm Morse taper shank, secure and accurate tool-holding system Black oxide finish, improves lubricity, resists corrosion, and will not chip or flake off Jobber-length, the most common length drill bit, is suitable for a wide range of applications 118-degree conventional point angles, for general drilling applications High-speed steel (HSS), for use on a wide variety of materials