Shank Type Round O.A.Length 6 inch Cutting Edge Material HSS Coating Black Oxide Chicago-Latrobe List 190 1/2 inch Holemaking/Drilling/HSS/Co Drills/Reduced Shank Silver & Deming Drills 13/16 RHS / RHC HSS 118 Degree Radial Point 1/2 inch Holemaking/Drilling/HSS/Co Drills/Reduced Shank Silver & Deming Drill - Steam Oxide Tool Diameter 13/16 inch Decimal Equivalent 0.8125 inch Measurement Type Inch Chicago-Latrobe Holemaking/Drilling/HSS/Co Drills/Reduced Shank