GUHRING 9011830059000 Jobber Drill, Coolant Fed, 5.9mm, TiN. More details: Jobber Drill, Coolant Fed, 1183, High Performance Grade, Solid Carbide, TiN Finish, Self-Centering Point, Drill Point (Deg.) 140, Metric Size 5.90, Decimal Equivalent 0.2323, Flute Length (mm) 44, Overall Length (mm) 82, Shank Dia. (mm) 6, High-Penetration Rate For Alloy And Tool Steel, Aluminum, Cast Iron, General Steel, Heat-Treated Steel And Stainless Steel