Aircraft Extension Cle-Line Angle 135 Degrees Cutting Edge Material HSS No. of Flutes 2 Point Shape Split Coating Black Oxide Cle-Line List 1803 Aircraft Extension Drills O.A.Length 6 inch 13/64 RHS / RHC HSS 135 Degree Split Point Aircraft Extension Drill - Steam Oxide Tool Diameter 13/64 inch Shank Diameter 0.203 inch Flute Length 2-7/16 inch