GUHRING 9055110037000 Jobber Drill, Coolant Fed, 3.7mm, FIREX. More details: Jobber Drill, Coolant Fed, 5511, High Performance Grade, Solid Carbide, FIREX(R) Finish, Self-Centering Point, Drill Point (Deg.) 140, Metric Size 3.70, Decimal Equivalent 0.1457, Flute Length (mm) 28, Overall Length (mm) 66, Shank Dia. (mm) 6, High-Penetration Rate For Alloy And Tool Steel, Cast Iron, General Steel, Heat-Treated Steel, Nickel Alloys, Stainless Steel And Titanium