Taper Length Measurement Type Wire Gage Coating Black Oxide Cleveland List 2510 General-Purpose Taper Length Drills #40 RHS / RHC HSS 118 Degree Radial Point General Purpose Taper Length Drill - Steam Oxide Tool Diameter #40 O.A.Length 4-5/8 inch Decimal Equivalent 0.0980 inch Cutting Edge Material HSS Shank Type Round Cleveland