Jobber Measurement Type Metric 4.20mm RHS / RHC HSS-CO 8% (M42) 135 Degree Split Point Cobalt Heavy Duty Jobber Length Drill - Straw / Gold Oxide Cle-Line List 1891 Cobalt Heavy Duty Jobber Length Drills Tool Diameter 4.2 mm Shank Diameter 4.2 mm Flute Length 43 mm O.A.Length 75 mm Cutting Edge Material HSSCoPM Coating Gold Oxide Cle-Line