OSG Flat Bottom Carbide Drill - Solid 2xD Long Length - EGIAS Coated - 4.10mmThe OSG Flat Bottom Carbide Drill is a precision tool designed for engineers and machinists who need deep, flat bottom holes in challenging metals. With a solid carbide core and an extended 2xD long length, it delivers reliable accuracy and reach where it matters most. Diameter: 4. 10 mm Overall length length type: 2xD Long Length for extended reach Material: Solid carbide for rigidity and long term stability Coating: EGIAS coating enhances wear