#53 RHS / RHC HSS 135 Degree Split Point Heavy Duty Screw Machine Length Drill - Steam Oxide Tool Diameter #53 O.A.Length 1-5/8 inch Measurement Type Wire Gage Decimal Equivalent 0.0595 inch Coating Black Oxide Shank Type Round Cle-Line Cle-Line List 1896 Heavy Duty Screw Machine Length Drills Cutting Edge Material HSS Screw Machine