Taper Length Cutting Edge Material HSSCoPM Measurement Type Inch 1/8 RHS / RHC HSS-CO 8% (M42) 118 Degree Notched Point Cobalt Heavy Duty Taper Length Drill - Straw / Gold Oxide Cleveland List 2513 Cobalt Heavy-Duty Taper Length Drills Tool Diameter 1/8 inch O.A.Length 5-1/8 inch Decimal Equivalent 0.1250 inch Coating Straw-Gold Oxide Shank Type Round Cleveland