Drill Bit Size Inch 12 Drill Point Angle Degrees 118 Drill Bit Material High Speed Steel Drill Bit FinishCoating Black Oxide Flute Type Spiral Cutting Direction Right Shank Type Straight Coolant Through No These drills are designed primarily for drilling in nonferrous materials such as Aluminum, Zinc die cast, and some plastics They are successfully used in mild steel deep holes where chip packing occurs with standard helix drills Bright finish 118Deg points High Speed Steel